Naughty Meeting is a site for finding sex partners. The site has a good layout and is easy to use. It offers the basic communication features such as private and instant messaging.
My search for local members provided a good selection of matches. With a free membership you'll only have access to a basic search but if you upgrade you'll have access to Advanced Searches as well. Along with paid memberships they give you the ability to view censored images, video clips and listen to audio clips.
NaughtyMeeting.com would be a great site to start off with if you're looking for someone to hookup with or just some online fun.