Roommate Click - International database, can preview potential matches before paying. Picture uploading available.

Asia Breeze - A pay roommate service that matches tenants, roommates and landlords for Singapore.

Easy Roommate - Matching service for some US cities. Free to preview possibilities.

Find-A-Bed - A pay service designed to help you find flatmates, share accommodations, and housesitters in Australia.

Flat-Sharer - UK - Pay service to locate flatshares in the UK.

Matching Roommates - Pay service for the Boston area.

Rainbow Roommates - NY - Assists people in finding shares in the NYC area with detailed and customized listings.

Rentbuddies - National bulletin board.

Room Find - Matching service for some US cities.

Roomie Match Roommates Nationwide - Comprehensive roommate matching including personality and lifestyle preferences, as well as the usual demographic stuff. Serves all large US and Canadian cities. Free to submit your profile. Witty questionnaire.

Roommate BBS - Gromco - International bulletin board, can pay fee to look for a roommate.

The Roommate Database - Roommate and apartment locator service. Matches according to your criteria, covers many US cities and Vancouver, BC. Free to preview matches.

Roomies Accommodation Services - Pay service for matching and referrals in Vancouver and Victoria.

Roommate Access - Roommate matching for most cities in the US. Free to preview matches.

Roommate Locator - Offers articles dealing with roommate and rental situations.

Roommates Hampton Roads - Pay service for the Hampton Roads area of Virginia.

Roommates to Go - Pay service for the Atlanta, Nashville, Louisville, Indianapolis, and Cincinnati areas. Offers a credit report release option.

San Diego Roommates - Advertise in San Diego County, CA. Free.

Share Rent - Free to browse on their bulletin board.

New York Habitat - In addition to real estate, offers information on sublets, roommate shares, and temporary situations in NYC. Offers same for Paris, France. Must call for any information on pricing.

Craigslist: San Francisco Bay Area online community - Bulletin board community, available online or via email update. Offers information on shares, as well as community events, personals, and jobs for the San Francisco area exclusively.

Roommate Express - Looks using your online profile, you can submit payment at their office or through the website. Many US cities served.

Roommatefind - Nationwide matching service, includes a resource page with sample agreements and compatibility quizzes. Free to preview matches.

Roommate Link - San Francisco-based service. Offers comprehensive neighborhood descriptions. Free to preview.

Roommates USA - Free matching service for the United States; sign up required.

ClickMates - Not for finding new roommates, but looking to organize life with those you already have. Features such tools as grocery list management, to do lists, and message taking.

Roommate Finders - A $300 flat fee promises you careful screening with your compatibility factors and a "no turkeys" guarantee. NYC area only.

Roommate Matchers - Los Angeles - Pay referral service for the Greater Los Angeles area. Offers ability to include pictures with your profile.

Space in the City (NYC only) - Provides information on roommate shares, and will assist you with subleases and share agreements. New York City area and New Jersey only, fee is $250.

Roommates Online - List yourself as an available roommate, with or without an apartment to share.