We are supposed to blog about how Library 2.0 or Web 2.0 applies to our institution / library. A concern for me is that our employer monitors user band width and periodically sends out reminders that "big brother is watching." L2 is the wave of the future and is evolving before our eyes just as the Internet emerged and changed the world in the 90s. If libraries are to remain a vital cog in the information wheel of knowledge for communities employers will need to embrace L2 and Web 2.0 technologies.
I find it interesting that web developers treat users as co-developers of sites. For instance if users do not adopt new features on web sites the features are removed and new ones added. ie: users become co-developers of web sites.
Google Docs and/or "Writely" are great examples of Web 2.0 applications.