As far as I understand, greasypalm is a site which provides you some offers to complete like clicking ads, or signing up with the given site etc.
They pay in pounds and not in dollars.
Sign up bonus E2.5
new referral 7E

Also, greasy palm is a cashback site. Here is what one of the members of "greasypalm" say.
Greasypalm is a cashback site...there are several out there on the internet with their main aim being to rewarded customers for using their site to purchase from. This site tracks your clicks so that when you click away from the site and go and purchase something beit a product or item it gives back a percentage of the amount you paid out for it. When your account reaches payout level you can claim your free money. I am a member of at least six or seven of these sites and bought a laptop through one which rewarded me with ten pounds back.