Here's a link to some Photoshop Plugins...

Some are free...!!!

http://www.thepluginsite.com/products/

   

Some downloadable e-zines for Photoshop plugins in pdf format....

http://www.plugsandpixels.com/ezine.html

   

A collection of Paint Shop Pro tutorials....

http://pspconnection.net/Final/scrapmenu/index.html