Its very simple. Become a PROFILE SPY! View their profile here then scan though ALL of his/hers past posts. You'l quickly get a good idea what they are up too. Usually, BHW marketers will reply to posts closely related to what they are doing or know about. For example, the UK guy who just bought his 90K merc. Read though his past posts. He knows alot about adsense and he does web design or at least thats what his profile says. Maybe he has a company in their field who knows and he claims his made his money all BH way. I wonder if that is only party true. The point is though, its gives you a very good idea! Also, many times, the first few messages posted by a user tells you what niche or thing they are looking to get into. You will see them asking all kinds of questions related to their desires. Then, much later on, you will discover that if they are telling everyone how successful they've become you can pretty much guess that its related to the nobbish questions they asked when they first joined (topic) Found tons of example like this. Not hard to find out what people are doing and not hard to find out what is and isnt working.