... and I hope you realise that the whole Acai Berry thing is largely a scam. Yes, the berry exists, yes it does have some health benefits (in largely the same way many other berries do - this one is particularly good in that regard) ... but it doesn't do most of the things the adverts claim it does (weight loss without exercise, etc).
The way people make money from it is usually via what is termed "Rebills" in the industry.
The way it works is - they offer a scam product (Acai Berry, Google Money Tree, various other miracle weight loss products that don't actually work) ... backed up by phony testimonials and usually a fake celebrity endorsement (usually Oprah or similar).
They supposedly offer a full money back guarantee on the product, but if you read the fine print (often pale text on a white background which you are 99% likely to miss), you'll find you are actually signing up for an ongoing subscription service which is very very difficult to cancel once they have your credit card details. Similar to the mobile phone ringtone scams etc. Might only be $4.95 a month for some of them, but others will try and charge upwards of $99 per month to your credit card and will try to avoid stopping at all costs.
Most of these rebill scams won't get very far in Australia due to our consumer protection laws, but the prevalence of ringtone scams and 190 phone numbers show that the concept is alive and well here (although there have been crackdowns in recent years).
It was very interesting to hear one of the real "super affiliates", Zac Johnson talk about it when he was in Sydney a couple of weeks back for the Affili@Syd conference ... he really does make a lot of money from affiliate marketing ... and is rather disdainful of the dodgy guys who use scams like Rebills to make money. He certainly didn't make all his money overnight ... he's been an entrepreneur since he was in high school (selling cans of "soda" to the kids at school) and has continually refocussed his attention and efforts as the industry and markets changed (currently the hot thing is online dating sites he says!).
FYI - some coverage of local scams by the Australian government:
http://www.scamwatch.gov.au/