Librarything - a social book sharing site
Librarything is an online site to catalog your personal library and find others who have the same books, and thus the same reading interests, as you do. People with like interests often end up forming groups to discuss their interests. I’ve just accepted an invitation to join the Rhetoric and Composition group. Up to 200 books, it’s free. And over that, it’s only $10 a year, or $25 for life.
It’s not the only one. TechCrunch has a post on a new one called Shelfari, which is supposed to have a better interface than Librarything. And there are others.
For avid readers, belonging to a social book sharing site is a great way to discuss the books you’re passionate about and find leads to new ones.