PHOTOSHOP

Websites for you all to have a look at :)

http://psd.tutsplus.com/

http://www.psdvault.com/

http://www.tutorial9.net/

http://photo.tutsplus.com/

http://www.digital-photography-school.com/

http://www.photoradar.com/

http://mediamilitia.com/

This last one's not photoshop, but it's great for lighting:

http://strobist.blogspot.com/