text: The top 20 IT mistakes to avoid 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. Thats 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.&lt;p&gt;ADVERTISEMENT&lt;/p&gt;&lt;p&gt;&lt;img src="http://ad.doubleclick.net/ad/idg.us.ifw.general/sbcspotrssfeedgimme;sz=1x1;ord=200301151450?" width="1" height="1" border="0"/&gt;&lt;a href="http://ad.doubleclick.net/clk;11714788;10469367;q?http://infoworld.com/spotlights/sbc/main.html?lpid0101035400730402idlp"&gt;White Paper: Converged Services Spell Relief&lt;/a&gt;&lt;br/&gt;Discover why technical decision makers are turning to IP telephony and VPNs to increase worker productivity while keeping an eye on the bottom line.&lt;/p&gt;