Photoshop tutorials
Must see websites
Photoshop TV - a weekly TV episode of photoshop , great resource
Adobe (Photoshop) Exchange - Where you can downloads hundreds of free resources you can install for photoshop, you have to sign up as a user, but it's all free
The Russel Brown Show - will make photoshop learning fun
Websites that has a collection of good links to other photoshop tutorials
http://www.photoshoproadmap.com/
http://www.picturesocial.com/ (more on photography)
Photoshop Actions
Photoshop Styles
Waterdrop Styles - download the sample and study how it was made
Photoshop Filters and Plugins
Not Photoshop but great design tool!
Rasterbator - creates huge, rasterized images from any picture. Upload an image, print the resulting multi-page pdf file and assemble the pages into extremely cool looking poster up to 20 meters in size.
Additionaly if you have completed the photo to sketch tutorial, try to rasterbate it coz it is already in black and white and you wont be using too much ink. Try it!
Use PSD files as productivity tool, design your own desktop wallpaper - http://www.flickr.com/photos/gr/182329409/in/set-72157594188036656/
Photography Videos
David Ziser - http://www.viddler.com/explore/ziser/videos/100/
Strobist.com
How to make 3d Glasses
Vanishing point Tutorial
Russel Brown introduces the vanishing point, hilarious! 0r download the quicktime movie if youtube is blocked in your office :(
Digital Tattoos
A simple way to make digital tattoos, I discuss in my photoshop class how to take it further, like embracing (or contour) the shape of the object and not just paste it in the object which sometimes make it look fake
CS5 New features
Content Aware fill - http://www.youtube.com/watch?v=PTvxlfBW96k
Puppet Warp - http://www.youtube.com/watch?v=jozjqrRTAyg&feature=related