I’ve been playing with Library Thing lately, and I’m loving it. It’s a flexible, non-intrusive, well done book cataloging and reviewing website. The service is both free (up to 200 books) and ad-free. One of my favourite features is exploring the libraries of people that have some overlap with mine, and discovering new, interesting books that way.
Over the course of a few days, I ended up adding all of the books in our Toronto apartment. The list is here, if you’re interested; I wish WordPress had a widget to link it to my blog. I’ll eventually get to tagging them all. And if you have an account there, I’d love to know where to find you.