This is the ultimate Photoshop Toolbox, it is not a list of random resources, it is a list of the BEST and most resourceful PS sites available.
The list is separated into the following categories: Free PSD Files Sites, Free PS Brushes Sites, PS Tutorials Sites, Free Filters and Plugins Sites, PS Forums, Photoshop Text Effects, PS Cheat Sheets and Free PS E-Books.
The rankings are based upon quality as well as number of outgoing links from this site.