Another option along with groups and other activities to meet friends is http://www.friendometry.com It is a friend finder that parents use to find their children friends. It is a pretty site that is new.
It is hard to watch kids struggle to make friends, in fact, it is hard to find places to make friends besides school, when perhaps school is no longer the best fit to make friends. There is a new website for parents who are looking to find friends for their children who are struggling to make friends. The website finds other parents in your area for connecting and matching kids. It is http://www.friendometry.com I encourage folks to check it out.