Learn from the past. "Baseline" has compiled <A HREF="http://www.baselinemag.com/article2/0,1540,2011304,00.asp?kc=BLCIOEMLP090506CMS3">a list of the errors</A> companies have made in their major information-technology projects, culled from more than 220 case studies "Baseline" has presented in the last five years.