Social networking, or social media seems to be a major issue relating to 21st Century library services. Lots of younger patrons are doing it as part of their daily life, and want it provided as a service at their public library.
A comprehensive and enlightening report from OCLC:
“Sharing, Privacy and Trust in Our Networked World: A Report to the OCLC Membership.” Dublin, Ohio: OCLC Online Computer Library Center. 2007.
Should Your Library Have a Social Media Policy?
By Ellyssa Kroski — School Library Journal, 10/1/2009
Kitsap Elected Officials Ponder the Pros and Cons of Social Networking
Kitsap Sun, September 5, 2009