My Google+ account gets all of my official announcements of things like new songs and videos.
My Twitter feed has all of that plus lots of personal randomness.
My YouTube channel has all of my official videos (plus a few unofficial ones).
Jango Internet Radio plays several of my songs. The more Likes I get, the more plays I get, which is a pretty great feedback loop.
Bandcamp has my albums in a variety of file formats. Name your price or even download for free.
Finally, if you want to contact me directly, click here for my email address.