Education Labs team have released a free add-in for Office 2003 and 2007 that allows educators to open and save Word, Excel, and PowerPoint documents directly to and from Moodle websites. What's a Moodle you ask? Moodle (or Modular Object-Oriented Dynamic Learning Environment) is a free, open source software package for producing internet-based e-learning courses and web sites. The Microsoft Office Add-in for Moodle provides educators an easy way to find, open, and save their Microsoft Office files housed in Moodle. Also released from the Education Labs team is a white paper outlining the steps required to utilize Sharepoint as the file system for Moodle: Go here for more info.