Categorized list of 5000 best web tools and services

I assembled a list of 5000 most useful and most popular non-free web tools and services, divided into 40 categories:

http://5000best.com/tools/

The point was to create a place where users can conveniently discover useful web tools to buy, and where they can compare different possible choices.

I guess many of you will find your own startups on the list (and the competition).

Critique and feature requests very much appreciated.