I have to thank one of my colleagues for asking me to review Atlassian's enterprise wiki, Confluence. I'm sold on using wikis for software project management, and while I've used SocialText for that task for years, Confluence is a significant improvement.
I am so enamored with Confluence that I decided to use it as my own personal wiki. I was hoping Atlassian had a hosted solution for a small number of users, but unfortunately their hosted solutions start at $150/month.
Confluence was built as locally installable software, and Atlassian's hosted offering is simply a service to maintain a Confluence instance on your behalf. Unlike true SaaS systems like SalesForce, Confluence wasn't built from the ground up as a multi-tenant hosted service.
But what Atlassian does offer is a $10 host-it-yourself starter license for up to 10 users with full support. Proceeds from which are donated to charity. Considering the quality of Atlassian software, this is a great deal. The drawback is, well, you have to host the software yourself, which isn't for the faint of heart.
Since I already have a Linode virtual server, which, BTW, I'm very pleased with, I didn't think it would be a big deal to install Confluence onto that server. Unfortunately, for commercial software, I found the install to be more time consuming than I would have expected, so I documented my install procedure for those who want to take advantage of Atlassian's starter license in an inexpensive Linux virtual hosting environment.