I've tried both Plenty of Fish and AdultFriendFinder, and I've had mixed results with both. On AFF I met one guy, who was ok, but not really what I was looking for. Plus the fact that AFF is quite pricey for what it offers, I gave up on that site. On POF, I met more guys, nothing stellar, but it has been my experience on both of these sites, as well as other sites where you hope to meet people (for whatever reason) that you must be proactive in searching for what you want - people are not going to come to you while you just sit there. Also, you have to be really on top of your email coorespondence people some people assume that if they don't hear from you in 24hrs (or sometimes less, if you have an impatient person) that you are not interested.