I just checked out Sonic Bids. Seems like a cool idea but almost none of the clubs in my area use it. The
one that does, I am reluctant to play at because that gig goes until 4am.

Cool idea though.
I use the old fashioned press kit; folder, bio, pictures, and a CD. The first time meeting a club owner/manager is everything; and bottom line, even if they really like you and your band, they just want you to fill the house. Which is very difficult in an area where nobody goes out specifically to see live music (only the 45+ blues lover crowd).