Classifieds & Listings:

• Washington City Paper - A Washington, DC staple, the weekly City Paper has an excellent entertainment search which allows you to search by music type, venue type, date, keyword…the possibilities are endless. Most venues list their monthly events and specials, such as happy hours, concerts or parties, in the City Paper, so pretty much if something is happening in DC it is in the City Paper. The Classifieds Section comes out online on Tuesdays and in print (for free) on Thursdays — something to keep in mind if you need to find housing or used furniture.
• Craig's List DC - Fantastic for finding housing or used furniture, and is basically a large Classifieds bulletin board arranged according to categories. Craig's List and City Paper have the best housing listings in the city, and are free to use, but be careful because neither one verifies its listings.
• Washington Post
• DC Pages
• Roll Call Classifieds

Intern and Student Housing:

• Washington Intern Student Housing (WISH) - housing is located throughout Capitol Hill neighborhoods for students who desire a location close to the nation's Capitol, Congressional offices, Library of Congress, the Supreme Court, and metro stations.
• International Student House of Washington DC - Dormitory-style housing.
• The Washington Intern Housing Network - Fully furnished intern housing. Free to apply.
• Cheap DC Intern Housing - Offers short-term housing for interns and students in Washington, DC.
• Internhousing.com - Search for roommates and apartments during a summer internship.

University Housing:

• American University Summer House for Interns - Dormitory housing, all utilities included
• George Mason University - Dormitories, apartments and townhouses available for summer interns.
• George Washington University - Summer Housing Opportunities - A variety of options for on-campus housing arrangements.
• Georgetown University Main Campus Summer Housing
• Georgetown University Off-Campus Housing Referral Service
• Georgetown University Law Campus Summer Housing
• Catholic University of America - Summer Intern Housing.
• Howard University Off-Campus Housing Service

Apartment & Housing Sites:

• Hillzoo classifieds - A source of multiple types of housing from dirt cheap to furnished.
• www.dchousing.net
• DC Registry - Online classifieds including summer housing
• Roommates.com
• Sublet.com
• ApartmentList.com

Other:

• Thompson-Markward Hall – Housing for women. Located on Capitol Hill within walking distance of Congressional offices.