We all like to think we learn from mistakes, whether our own or others’. So in theory, the more serious bloopers you know about, the less likely you are to be under the bright light of interrogation, explaining how you managed to screw up big-time. That’s why we put out an all-points bulletin to IT managers and vendors everywhere: For the good of humanity, tell us about the gotchas that have gotten you, so others can avoid them.

2. Dismissing open source -- or bowing before it

For better or worse, many IT shops are susceptible to “religious” behavior -- a blind, unyielding devotion to a particular technology or platform. Nowhere is that more true than with open source.

This is full of 20 tips and things to watch for that aren't entirely obvious but they are good things to think about. It was a quick read at least.

The top 20 IT mistakes to avoid | InfoWorld