Alison asked about library blogs last month.
Have a look at The Girvan Library Blog. As well as featuring books the blog links to a wiki with reading lists and also includes a categories list in the side bar. This is a useful tool for highlighting groups of posts in a blog eg: book categories, posts by a student, topics. In this bog it would make it easy for readers to link to books posted by categories or genre. To set this feature up if you are using blogger click here for instructions.
Readers are also invited to leave comments...again raises the question of strategies for encouraging participation through commenting. Any suggestions or activities that you have tried in this area?