Services from Deutsche Welle:
The Newletter webpage offers you the opportunity to receive several e-mail newsletters for free.
See also their Podcasts Page.
Services from the German Information Center:
The Information webpage offers you the opportunity to receive e-mail newsletters for free.
Services from Goethe Institute:
Goethe has links to numerous helpful learning materials.
Services from Alumni Portal Deutschland:
Online learning suggestions are at Online Deutsch Lernen.