Microsoft Broadcaster is a service for IT professionals, aspiring technologists and developers, to help them have access to Microsoft content in a fast and simple way. This service allows them to publish official Microsoft information on their blogs, in the newsletters they send or in user group communications. Blogs and websites that benefit from this service usually have a higher traffic, and this's mainly due to quality of content and its several forms - webcasts, podcasts, videos or white papers.
The "chosen ones" will have the right to download and embed content without sending traffic away from sites and will have access to custom content classified by keyword and form factor (webcasts, podcasts and videos). You can customize by product - Windows, SharePoint, Microsoft Office – and you'll have option of setting alerts for content updates.
Bloggers wanting to join this program need to fill in an application form, that'll be later evaluated by the program administrator, who has the final saying and is liable to invite them, if they qualify, to join Microsoft Broadcaster.
More Info: Microsoft Broadcaster