The ad on craigslist only says it needs study participants over 18 and over 100 pounds and will give you $1200 compensation. The email response says you need to go to a web site to have Acai berry supplements mailed to you, that you need to take them for 2 weeks, mail pictures of yourself during the 2 week trial and after the 2 weeks you will be mailed the $1200. It says that you need to give your credit card information when ordering the acai berry supplements but it is a free trial. It says your credit card information is needed to... read full review »