Public Policy - Atlanta, GA.
Stipend, yes.
Offered by the Department of Economics at the Georgia State University's Andrew Young School of Policy Studies, the summer policy internship is a seven-week learning program for undergraduate students entering their senior year. Interns work with faculty members on policy research projects in the school's research centers.Internships are available for a select number of students who have demonstrated overall academic achievement, as well as an interest in an area of public policy. Areas of study include environmental economics, international economics, state and local governance, public financial management, education and education reform, health care, and many other topics vital to a functioning society

http://aysps.gsu.edu/economics-undergraduate-research-experiences.html

Performing Arts - summer internships.
Stipend, yes. Housing, no (they may help you find housing). Car, you need one.

A typical season at Wolf Trap includes something for everyone with performances ranging from pop, country, folk, and blues to orchestra, dance, theater, and opera, as well as innovative performance art and multimedia presentations.

http://www.wolftrap.org/Education/Internships_for_College_Students/Application.aspx 

Child welfare League of America.
No stipend, no housing. Washington, DC.

"The Child Welfare League of America (CWLA), the nation's oldest and largest membership-based child welfare organization, has been known and respected as a champion for children since 1920. Our primary objective, and the title of both our current strategic plan and our National Framework for Community Action, is Making Children a National Priority. To do that, we must engage all Americans in promoting the well-being of children and young people and protecting them from harm."

http://www.cwla.org/whowhat/intern.htm 

Study the origins of social cognition.
Stipend, yes. Housing, not provided but they will help you to locate housing.

This NSF funded internship will give undergraduate students the opportunity to gain research training across the fields of comparative and developmental psychology. Students will have the opportunity to study the origins of human social cognition from two different but related perspectives: developmental studies testing human children’s social understanding and comparative studies examining social cognition in capuchin monkeys. During the 10-week internship, students will work jointly in Dr. Laurie Santos’s Comparative Cognition Laboratory and Dr. Kristina Olson’s Social Cognitive Development Laboratory at Yale University. Summer interns will participate in all aspects of the research process: research design, data collection, coding, and statistical analysis. In addition, students will have the opportunity to work directly with child participants and a group a socially-housed capuchin monkeys. Students will also have the chance to participate in weekly lab meetings and take part in a professional development series. Application due March 1st, 2011.

http://www.yale.edu/caplab/internship/Home.html

Hispanic Association of Colleges and Universities

the HACU National Internship Program - stipend and housing included. Application due in February.

Participants are undergraduate and graduate students, have a minimum 3.0 GPA and are active in community and campus activities.HACU reviews applications for completeness and eligibility. HACU staff matches academic backgrounds to internship descriptions provided by the host organizations. Representatives from the host organizations and HACU staff work to ensure that students’ skills and goals are considered in placement. Agencies and corporations review applications and make the final selection. Supervisors are encouraged to interview applicants before making the final student selection. Students who are selected, will be contacted by HACU and offered the position. Interns work in the Washington, D.C. area and at field sites throughout the country. It is not possible for applicants to select which agencies or corporations for whom they will intern. In the past, interns have enhanced their professional skills through placements in departments of public affairs, accounting, human resources and information technology, as well as laboratories, hospitals, airports, and national forests and parks, among others. Some intern assignments have included completing and analyzing research, writing speeches, conducting audits, performing land surveys, creating web pages, conducting community health surveys, and developing outreach strategies for under-served populations.

http://www.hacu.net/hacu/HNIP_EN.asp 

Institute for Women's Policy Research.
Stipend, yes. Housing, assistance may be available.

Summer 2010 Internships

The Institute will offer internships in three areas for summer 2010:

Research Internship. Interns will provide administrative and research support to researchers. Duties include: assisting with literature reviews and data collection; designing charts, graphs and tables; answering phones; and filing. Qualifications: Strong organizational skills, good interpersonal skills, interest in policy research and women’s issues; exp. with statistics, economics or social sciences through coursework. Research areas for the summer of 2010 include:

• The quality of women’s jobs, including wages, access to health insurance, paid sick leave, and workplace flexibility.
• The work and welfare experiences of low-income women at the state and national levels, including an ongoing study examining the policy needs of women in the Gulf Coast following Hurricane Katrina.
• Increasing access to higher education and non-traditional jobs for low-income women.
• Expanding access to income supports for women such as Unemployment Insurance and Family Leave.
• Strategies for improving child care access, affordability, and quality.
• Older women's economic issues, including social security and pensions.
• Women’s civic activism and new strategies for engaging a diverse range of organizations in activism on women's issues.
• The economic status of women and girls, women of color, and immigrant women across the United States.

http://www.iwpr.org/About/employment.htm#internships

State Department: Student employment programs for students interested in foreign affairs.
No stipend, no housing provided.

Duties of an Intern

The Department is looking for students with a broad range of majors, such as Business or Public Administration, Social Work, Economics, Information Management, Journalism, and the Biological and Physical Sciences, as well as those majors more traditionally identified with international affairs.Intern duties and responsibilities may vary according to post or office of assignment. For instance, interns may write reports on human rights issues, assist with trade negotiations, assist with citizens services or visa work, help Americans in distress abroad, or organize conferences or visits of high-level officials. Others may research economic or environmental issues, write news stories, work on web pages or help produce electronic journals. Those interested in administrative management may use their expertise working on projects involving budgets, human resources, information systems, or general logistical support to posts abroad. Some may be involved in educational and cultural exchange activities.

http://www.state.gov/www/careers/rinterncontents.html 

Council on Foreign Relations.
No stipend, no housing provided

The Council on Foreign Relations’ Internship Program offers outstanding opportunities for college and graduate students focusing on international relations who are considering a career in foreign policy or a related field. Interns are recruited year-round on a semester basis for both the New York and Washington, DC, offices. The fall and spring semesters require a minimum commitment of sixteen hours per week. The summer semester requires a full-time commitment. An intern’s duties generally consist of administrative work, program coordination, research, editing, and writing. The internships are unpaid but provide a small stipend upon successful completion to offset transportation expenses.

http://www.cfr.org/about/career_opportunities/internships.html

Center for Strategic and International Studies.
No stipend.
CSIS offers full and part-time internships in the fall, spring and summer for undergraduates, advanced students, and recent graduates who are interested in gaining practical experience in public policy.

http://csis.org/about-us/internships 
http://csis.org/about-us/internships/internship-faq 

Multicultural Arts Management in NYC.
Stipend, yes. Housing, not provided but they will help to locate.

As this program seeks to promote diversity in the field of arts management, preference will be given to African-American, Asian-American, Latina/o, and Native-American students.

Each intern spends 10 weeks at a New York City arts organization, working full time Monday through Friday. In addition, interns attend site visits to all participating arts organizations; an opening orientation breakfast meeting; weekly social gatherings and/or workshops; and a closing ceremony and reception. Interns may complete projects in marketing and communications, development (fundraising), event planning, audience development, community outreach, and more. Participating students come from around the country, and they bring with them a variety of personal and academic backgrounds. Intern host arts organizations represent a range of disciplines, including music, dance, theater, visual arts, museums, and arts services. And last but not least, corporate mentors hold numerous professional occupations but share a common passion for the arts and desire to guide a young person in his/her pursuits.

http://www.artsandbusiness-ny.org/leadership_development/arts_management/001.asp 

Public Policy and International Affairs Summer Fellowship:

This is for juniors and applicants must be committed to completing a Master’s Degree in public and/or international affairs at one of the PPIA Consortium graduate schools.

Must demonstrate an interest in pursuing a professional career associated with public service such as government, nonprofits, humanitarian and international organizations and other related programs.

The PPIA Junior Summer Institutes (JSI) have been the hallmark of the PPIA Fellowship Program for over 20 years. JSI is an intensive seven-week summer program that focuses on preparing students for graduate programs in public and international affairs and careers as policy professionals, public administrators and other leadership roles in public service. The JSI curriculum includes economics, statistics, domestic/international policy issues and leadership topics, all designed to sharpen the students' quantitative, analytic and communication skills. Extracurricular activities are also included. These skills are vital for admission into the top graduate programs in public and international affairs. The successful completion of a summer institute is a requirement for PPIA Fellows.

As a PPIA Fellow you are entitled to the following benefits:

• Full tuition at a PPIA Junior Summer Institute.
• Eligibility to receive assistance with travel expenses.
• Minimum of $1,000 stipend.
• University housing with a meal plan.
• Books and related course materials.
• GRE prep.

http://www.ppiaprogram.org/programs/jsi.php 

Coro: A variety of full and part time leadership development programs in public affairs, business, community-building, and health.

http://www.coro.org/site/c.geJNIUOzErH/b.2086427/k.9668/How_to_Apply.htm

Nonpartisan economic and social policy research

http://www.urban.org/about/careers/internships.cfm

Although the Urban Institute does not have a formal internship program, we do hire research assistants on a temporary basis for full-time and part-time assignments during the academic year and during the summer.

The position of UI Associate is responsible for assisting senior researchers in various policy areas such as housing, welfare, population studies, health, and education policy. Incumbents will conduct literature reviews, analyses and programming tasks, as well as participate in reporting research findings and presenting data.

Qualified candidates should be enrolled in a B.A. program in Economics, Mathematics, Statistics, Sociology, Public Policy, Computer Science, or other social science field with strong quantitative and analytical skills, library and Internet research experience. Proficiency with spreadsheet and presentation graphics software skills, familiarity with data analysis software packages (such as SAS or SPSS), and experience with survey data analysis preferred. Many graduate-level opportunities also exist.

To apply, please visit our Current Job Listings page to view all temporary research opportunities at the Urban Institute and to complete an application.

All Summer Internships will be listed on our jobs site as UI Associate. Most summer opportunities are posted beginning in April, so please check the listings often.

City of New York offers many summer internships in every area of municipal government. Some are paid, some not. Housing is not provided but they will help to locate housing. Check back in January for summer 2011 opportunities. Look over the site now to see what internships were available last summer and to review the application process.

http://www.nyc.gov/html/dcas/html/employment/summerintern.shtml

National Defense Council.
Stipend, yes. Housing, no.

NDCF provides interns experience in foreign policy and defense studies, with a specific focus on terrorism, low-intensity conflict, and energy security.

http://www.ndcf.org/ 

White House Internships.
No stipend, no housing.

http://www.whitehouse.gov/about/internships/apply

American Mathematical Society - multiple links for internships

http://www.ams.org/programs/students/undergrad/emp-internships

Children's Defense Fund - links to a number of internships, all unpaid in Washington, DC.

http://cdf.childrensdefense.org/site/PageServer?pagename=Get_Involved_Internships_Types http://cdf.childrensdefense.org/site/PageServer?pagename=Get_Involved_Jobs

Progressive Policy Institute - no pay, small stipend for transportation

Editorial Internship

The Progressive Policy Institute is looking for editorial interns for spring and summer 2010.PPI is a nonprofit think tank that seeks to define and promote a new progressive politics for the 21st century. PPI was the main purveyor of policy innovations to Bill Clinton’s New Democrats — break-the-mold ideas that also migrated to Britain and other democratic countries around the world under the rubric of the “third way.” Today, PPI remains at the forefront of promoting a pragmatic and responsible progressivism.

http://www.ppionline.org/ppi_sub.cfm?knlgAreaID=87&subsecID=64

and some more links to social science related fields....

http://www.cartercenter.org/involved/internship/index.html 
http://socialsciencesgateway.rice.edu/gatewaysummerfellows/ 
http://www.rochester.edu/college/OMSA/SocSciHum

Summer research in social sciences

http://www.norc.uchicago.edu/Careers/Summer+Internship/
http://www.icpsr.umich.edu/icpsrweb/content/ICPSR/internship/
http://www.ssrc.org/about/employment/
http://www.apa.org/education/undergrad/research-opps.aspx
http://www.cwla.org/whowhat/intern.htm
http://www.bc.edu/offices/careers/internships/howto/socialwork.html
http://www.bc.edu/offices/careers/internships/howto/nonprofit.html

and some engineering possibilities:

http://externs.com/search/engineering.cfm
http://www.indeed.com/q-Summer-Engineering-Internship-jobs.html
http://people.rit.edu/gtfsbi/Symp/bme.htm
http://www.engineer.info/Engineering_jobs.asp?query1=internship&location1=&B1=Find+Jobs
http://www.engineeringjobsite.com/jobs/job-search.asp?fkeywords=Internship&fwhere=
http://www.aero.org/careers/intern.html
http://www.wise-intern.org/application/index.html
http://www.stellarsolutions.com/internships.html
http://www.ae.msstate.edu/site/pages/internships.php
http://www.indeed.com/q-Civil-Engineering-Internship-jobs.html