Library Thing

Library Thing – “[A]n online service to help people catalog their books easily. Because everyone catalogs together, you can also use LibraryThing to find people with similar libraries, get suggestions from people with your tastes and so forth.” (Blog).

PocketTrax

Pocket|Trax – “[A]n audio (and sometimes video) blog. The difference is that we do not review music. There are just too many folks out there that are much better at that than we are. What we do is collect and share artist information and sample tracks and leave the reviewing up to you.”