Hubble Telescope website
http://hubblesite.org/

The Future of our world
http://thefutureofourworld.ytmnd.com/

really cool art
http://www.singlecell.to/

wanna juggle? how about juggle on acid?
http://www.juggleonacid.com/

cult movie reviews and downloads
http://www.eccentric-cinema.com/

this guy puts lots of shit into a blender like marbles, coke, chicken, all sorts of shit.
http://www.willitblend.com/videos.as...&video=marbles

bad ass chill music
http://www.soundincolor.com/

awesome wallpapers
http://www.earthwallpapers.org/

tons of sweet online radio stations
http://www.filtermusic.net/

flight patterns - awesome video
http://users.design.ucla.edu/~akobli...ntationl2.html

cg art
http://www.cgchannel.com/gallery/vie...sp?imgID=13343

bad ass landscape art
http://www.love-peace-happiness.com/.../works_04.html

I'll post some more later, these should keep you busy though.