I have opened the site. And it was launched on July 21st 2009 and is a forum community where for all members to share their opinions mostly about making money via internet. Well, I think I will join this soon.
Now in extremesurfs the payment for each post is deducted from 0.01 to 0.005 for members and 0.075 for VIP members. The owner (Mr.Austin) said that he has financial difficulties due to the lack of advertisers or sponsorships.
So Oilstructure is a kind of investment organization that is similar to forex exchange. I have browse the site and I see at the bottom of the site are the lists of names of the scam sites. I hope this one is not scam too.!!!