I have posted previously about my weakness for web apps requiring a signup, including the Useless Account, but recently came across a site that makes my affliciton look somewhat insignificant.

The site is called Simple Spark, and it claims to be tracking 8,611 as of posting this.  They have everything broken down by category, and also by device (Mobile, iPhone, Wii) which is convenient.  There is also a feature you can access by registering (yep, I registered) which lets you create lists of apps you like in a sort of dropbox on the right-hand side of the page.