Hewlett Packard (HP) has a free online resource for teachers called the HP Teacher Experience Exchange. The HP Teacher Experience Exchange has two different areas in it. One is a repository of courses, articles, lesson plans, classroom resources, and more available to community members. Registration is free, as are the resources. There is also a forum section where educators can discuss, share, and learn from each other.
You can also sign up for free email newsletters that bring tips, ideas, and resources to your inbox.
HP has partnered with Microsoft on this project, so there are references and links to Microsoft products and services.
I have found a lot of great resources and information on this site, and recommend it to my colleagues.
Follow on Twitter @HPTeachExchange
Follow on Twitter @HPTeachExchange