EyeOS is a web based operating system that allows users to access their desktop from virtually anywhere at anytime. I am really excited about this kind of technology because of the mobility that it provides. There are several different WebOS's out right now, I prefer this one because they have a public demo so you can see exactly how a WebOS works. 

This is a service that Google offers free to K-12 at the moment. It allows you to link your existing directory structure (student and staff users) to Google, allowing for a more seamless transition between the local computers and hosted applications. This service gives users a gMail account, Google Docs and the ability to store any file type on Google's servers. 

Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a Free web application that educators can use to create effective online learning sites.