I want to learn about how to use meditation to help social anxiety problems (or any anxiety problems)--

I have had some success in this area but I also want to learn more, this thread is for discussing how to use meditation, in particular, to help problems with "clinical social anxiety disorder" (basically a phobia or fear of of social situations). 

Do you know of ways to use meditation to help social anxiety or even other anxiety problems?

What has helped you (vis-a-vis anxiety problems and meditation)?