Often you'll find what the words don't tell but an honest voice has already telling you the truth right in between the lines. I give you a couple of examples I can find
"I made $143,578.47 in a week using this system. It's a proven system that churn out cash into my cowbank account and I'm laughing all the way to the bank"
Yeap, I know, this might not be the best of example but think of it this way, if that fellow is making 6 figure every 7 days, he'll be almost as rich as Bill Gates. Why would he wanted to sold his secrets of making money? The tricks is layout clearly he just wanted to sell you something and make a profits out of it.
In the second example, I once read an article on a local daily about "How to create a passive income by investing in unit trust to achieve high return that is suppose to rack in a bulk of money for your retirement".
The article's content was written in such a perfect manner that one would be taken in because it seems to have a perfect plan layout for you. All you have to do is make monthly deposit to buy their unit trust and by the time you retire, you would have the money ready just for you.
What's the catch? At the end of the article, there was a small column, right at the end of the article, about the author's profile that read "head of research for so and so investment company".
If you read between the lines, this guy is a person that "work for money" and yet he's giving you advice and wanting to teach you how to make passive income. Further more you'll only find out whether the plan works or not, by the time you retire (and that's some 20 years into the future) - isn't that worth a thought from whom you're getting the advice from?