http://www.onemanga.com/The_Melancholy_of_Haruhi_Suzumiya/
Woot I actually found it!
Looks like it was just put up too and Wiki was right, it is targeted to a younger audiance (also the story is vastly altered from the original. I mean the things still happen, but at different times)
Ah right I forgot Lucky Star had an anime adaptation as well