I very much like the concept of #5, but I don't care for the "spacey" font. I put "Not Interested" on #6 and #7 because I liked some other versions where the orange was first and then the blue.
I really like #55... a lot. I ranked it #4 but it is really in a tie for first place... right now, I just can't decide which I like best. I think I like the more unique shape surrounding the "ed"... isn't there another prominent logo out there with "ad" or "ed" highlighted in a block?