You can subscribe to RSS feeds to find the newly published content in our TechNet libraries.

RSS feed Newly published Office SharePoint Server topics list RSS feed (http://services.community.microsoft.com/feeds/feed/SharePointServerNewContent)

RSS feed Newly published Windows SharePoint Services topics list RSS feed (http://services.community.microsoft.com/feeds/feed/WindowsSharePointServicesNewContent)

And for the libraries of related products:

RSS feed Newly published Project Server topics list RSS feed (http://services.community.microsoft.com/feeds/feed/ProjectServerNewContent)

RSS feed Newly published PerformancePoint Server topics list RSS feed 
(http://services.community.microsoft.com/feeds/feed/PerformancePointServerNewContent)

RSS feed Newly published Search Server topics list RSS feed
(http://services.community.microsoft.com/feeds/feed/SearchServerNewContent)