Nothing ventured, nothing gained. I signed up and put two samples on there. It says I get 50+ readers per day (impossible, but the thread linked above explains that). Don't expect anything from it, but surely no worse than google search, twitter etc. It's free, it takes a few minutes to sort out and there has been a few folk that have got lucky off the back of it. Surely no more foolish than buying a lottery ticket, just hold the same expectations of it coming off!