SiteBound is a tool that allows bulk addition of boundaries to ConfigMgr (SCCM ) sites. Adding boundaries through the ConfigMgr console can be tedious if adding more than a handful. Previously for SMS 2003 there was the Sitebound.exe tool which solved this problem, however, to my knowledge there is not a version of this tool available for ConfigMgr 2007. If there is, then oh well I still learned something.
This tool is not as full featured as the Sitebound tool for SMS 2003. It will only add new boundaries to a ConfigMgr site.