http://www.sideprojectbook.com/ This is an ebook I put together where I interviewed 39 entrepreneurs who had built a successful side business without leaving their full time gigs.
I have http://www.invisibleobama.com for sale. I'm sure someone with the right attitude could monetize it well since a similarly named twitter account has over 60K+ followers on twitter (@invisibleobama, which i don't own).
If anyone is interested, comment here and i'll get in touch. I'm not asking much.