You have to learn to think for yourself if you're going to make it in the Internet business world...

Here's one good example:
It seems like everyone who owns a website has jumped on the "drive more traffic to your sites with this blog spamming tool" bandwagon.  There are dozens of these tools, and more are being released every week.

Here's a clue - this trick used to work a year and a half ago, and now that everyone has finally heard about it and started doing it the search engines have caught on.  Guess what - it doesn't work anymore!

Use your head when it comes to stuff like this -- if the software or technique is so great, why is it being released to the public?  If the technique works so well, it would be kept hidden so that the flow of profits would keep coming.  It's only when the effectiveness starts to fade or stops completely that the "marketing sheep" are "let in on the secret".  Remember this the next time you see "an amazing new product."