The Microsoft Virtual Academy is a great resource and will help you improve your IT Skill set and help advance in your career with a free, easy to access training portal. You can learn at your own pace, focusing on Microsoft technologies, gain points and get recognition. The MVA is a free program delivering structured learning paths for IT Professionals on various Microsoft products and solutions.
Also, go to the new TechNet Cloud Hub where you can get the ultimate resources on how Office 365 and collaboration work in the Cloud: Office 365 takes collaboration to the cloud with tools your users are already familiar with: Office, Exchange, SharePoint, and Lync videoconferencing.
Other great resources include the Evaluation Download Center where you can get free access to evaluations on practically any MS Software.