Me too! So I've done something about it. I made a trap for lonely people. It's a bad trap, since I didn't catch many lonely people yet.
It's supposed to let you choose who you want to interact with. But instead of superficial pictures abundant on other sites, it offers a chance to look at people's inner qualities, at who they really are. It is done in a classic way of asking and listening to what people have to say.
It's very rewarding to create new friendships. It is not very easy when you're grown up. I hope that my Communication Application could help many people find and develop precious friendships with complete strangers.