Ok, after a bit of research They have a payout limit of $50.00 Meaning you must make 50 bucks before you can draw upon your money.
They have surveys and online content that can be voted on.
From my findings it appears it can take a couple years to make 50 bucks from them. A few people state it has taken 4 years to get $50.00
They do pass your email name around to spammers.
It states clearly in their Terms of Service that by signing up with them they have the right to pass your email around to 3rd party people that have nothing to do with surveys.
It appears their surveys pay from 80 cents to 2 dollars each. You might get lucky and get 6 surveys in 1 week and nothing again for months.