Some of the sites have a "referances" section like ivitamins,but some will get offended if you ask for referances like ip china supplies,he gets extremely offended,but then you sit there wondering well how do i find out about this sponsor if they have no thread,and truth is you just have to risk it or ask other members about the sponsor,and after you take your gamble in this lotto of choice,99% of the time it turns out good,because PM.com does not keep bad sponsors on here and they watch out for us!
for the most part all sponsors are good to go,its just up to your opinion and choice!