http://www.deviantart.com - all sorts of art
http://www.turtleshell.com/ - webdesign
Photoshop tutorials on google - when I'm in need for inspiration I just google for photoshop tutorials and see if I can find a useable fx
http://www.nobodyhere.com/ - a dutch site with all sorts of funny thoughts. There's a english version too (see top left corner)