I have been using photoshop for quite a while now, and every time I need to get something done, online tutorials are my best allies. Here are few of the best sites to check out.
1."psd.tutsplus.com"
2."photoshopessentials.com"
3."photoshoptutorials.ws"
4."tutorialized.com"
These are the sites I frequently visit for photoshop help. They're pretty easy to use sites because they have categorized their tutorials pretty well. Go check them out. Gook luck.