Which Mystery Shopping Sites to Join?

I have been doing quite a bit of mystery shopping over the last month. I have been finding that you can make about $100-150 per day if you get yourself organised.

You'll be testing the sales performance of retail shops, liquor outlets, fast food, and test driving cars....you'll get cash and sometimes you get to keep products or have a free meal.

Which ones would I recommend joining?

• Hoed (much better since they upgraded their web site)
• GapBuster (easy, lots of assignments)
• Retail Mystery Shopping Australia (lots of assignments)
• Coredata (not so many assignments, but the rewards are really good)
• The Realise Group (not as easy to use as the others, but still has quite a few assignments)