I've been doing the high-tech thing for around 25 years. I've worked in over 40 programming languages, wrangled just about every major variant of UNIX and Linux out there, and solved some particularly thorny problems over the years.
Me and Wikis
I got hooked on wiki technology almost immediately after it came out back in the 90's. Because of it's malleable nature and ubiquitous availability, It can work really well for corporate knowledge management.
intranet wikis work particularly well when/if a small group of "wiki gardners" tend to them. Without people working in that capacity, both intranet and Internet wikis have tended to get kind of "out of control" after a while, or just plain stagnate. I've enjoyed working in that capacity within organizations.