The sites directory in Microsoft Office SharePoint Server 2007 has greatly improved and provides enhancements in both functionality and navigation. One of my favorite features is the ability to scan the sites directory for broken links.
As a SharePoint adminstrator or manager, you will likely reach a point where many sites have been created however since their creation, some have been deleted or moved. SharePoint Portal Server 2003 made it very easy to organize your sites and create links to content. But like most traditional web sites, if you make a link and someone moves or deletes the content…your link is broken and you likely have no idea unless you go back and regularly check your links.
In SharePoint 2007, there is a built in tool that will scan for broken links on demand directly from the actions tab.
As well, if you are an administrator, you can schedule scans of the Site Directory views using the timer service.