I stumbled across an online course called Five Weeks to a Social Library
Week 1 - Blogs
Week 2 - RSS and Social Bookmarking
Week 3 - Wikis
Week 4 - Flickr and Social Networking Software
Week 5 - Selling Social Software at Your Library
The course is put together by Meredith Farkas who writes the blog Information Wants to Be Free
The course has already started (February 12 to March 17), but links to articles, webcasts, wikis, etc. will remain online, so you can go through the content anytime.
There is a wiki for the course called Sociallibraries
There is even a wiki called Social Library Lurkers for people who are not officially enrolled in the course!