While reading the live blog today from the SharePoint Saturday in the Ozarks I saw a mention of a cool tool that I wanted everyone else to know about.
Quest has a freeware tool that will discover all the SharePoint instances in your environment. The link takes you to the registration page to get the tool. This is especially helpful in combating the viral nature of SharePoint in larger organizations. Good governance and plain old IT policy says that we should at least know about what users are creating for themselves even if it takes us some time to get our arms around it from a practical standpoint.