Open up buisness email

ok We talk about email been groupware but it is not groupware. I got a email the other day to help someone with a PDA, the only reason he new he should contact me is that he asked some one who knew I could help. Yet if he could search my email like google he could have found PDA and contacted me, we need to look at how and what we store in emails and how users in the company could look up important information. We are use to searching for information, and email is one of largest and latest information stores that we have.