There's a Flyoverland Crank Facebook page that I use to announce whenever I have a new column available. Normally (poop happens) I publish a new column every Saturday evening at 7:11 (p.m. & ET).
I also like to post things there that I find interesting. Facebook is particularly handy for sharing shtuff from the Wall Street Journal, my personal paper of record. It lives behind a highly fortified paywall but allows the posting of individual articles and opinion pieces on social media.
Cranky don't tweet.