Art and Photography:
Graphic design stuff: webdesignledger.com
Some excellent photographs: www.noupe.com
Photography hints and tips: www.lightstalking.com
National Geographic photo of the day: www.nationalgeographic.com
Experimental photography: www.lomography.com
Random collection of pictures and that: Lost, Stolen or Ripped Off
Surfing:
All round extreme sports videos and articles: mpora.com
Sweet surf and photography blog: The Daily Bread
Another good surf blog: Adventures in Trim
Cool Stuff:
Science and technology stuff: gizmodo.com
Self-explanatory: www.punchinthefacebook.com
Random collection of pictures and that: Lost, Stolen or Ripped Off