Growing Up Heroes
Everyone wanted to be a superhero at one time in their young lives. Now you can relive that feeling through this Tumblr photo archive of kids dressed in superhero costumes.
http://growingupheroes.com

A Collection A Day
For each of the 365 days of 2010, Lisa Congdon, an obsessive collector, will be posting pictures (and some times paintings) of her many collections.
http://collectionaday2010.blogspot.com

Tune Checker
A new UK-based site which compares the prices of online music retailers such as Amazon, iTunes, 7Digital, We7 and Play.com depending on what album you search for.
http://www.tunechecker.com