Plugins and filters extend Photoshop by providing new funtionality and effects that you wouldn’t otherwise be able to achieve or by simplifying a process.

Link: http://tutorialblog.org/free-photoshop-plugins/

Adjusting your photographs to get the color ‘just right’ can be a chore. Think about this: The Old Masters of painting spent years of their lives learning about color. Why let all their effort go to waste on the walls of some museum when it could be used to give you a hand with color correction?

Link: http://www.unfocusedbrain.com/projects/match_color/

Great collection of links about HDR.

It’s better to manage your print quality from inside Photoshop

Nice video overview on Lightroom 1 from NAPP website and you don’t have to a member to see those. I think anyone who shots Raw should see it.

Link: http://www.photoshopuser.com/lightroom/index.html

Lots of video tutorials and not only on PhotoShop.

Link: http://www.video-tutes.com/packages/Photoshopcs3.php

Video tutorial on how to use Vanishing Point with clone tool in PhotoShop.

Link: http://www.metacafe.com/watch/403986/photoshop_tutorial/

Great HDR tutorial.

Link: http://stuckincustoms.com/?p=548