SharePoint is a great way to allow access to documents when users are connected to the network, but what about when they're not? Colligo Reader (free for individual use) can download SharePoint content to a portable computer so users can work offline. Documents stay linked, and the content stays organized according to the views defined on the server. Users can download folders, libraries, and even entire sites by simply dragging from their browser. Changes are synced back to the server automatically when the user reconnects.