If there is a particular activity that you engage in on a regular basis then browse these sites. Playing together or engaging in your favourite hobby or sport is a great way to break the ice and get to know someone. It's also a good way to meet new people who share your enthusiasm or even passion for a particular activity.
Sports and hobbies, clubs and associations - all these things bring people together, but you can combine these with on-line dating to widen your search around the country or even the world rather than just your local venue. Typical activities that attract interest here are biking, yoga, sailing, horse riding, country and other sports.