Since i have been
hunting for blogposts i have got a lot of nice offer and a lot of scam at different websites. Please don't get me wrong i am not a PR fanatic nowadays, but the first thing i check is the info:domain.com query at google, which immediately gives a feedback if the site was/is redirected because a different domain will be returned.
This is far enough to loose all my trust.
If you have the willingness to purchase any service from a site i suggest you to do the same, if you don't do it already.