I checked Facebook for the Austin Public Library, and sure enough they have a page. While looking at a few of the most recent posts, I learned something new: in addition to e-books, digital comic books and graphic novels are also available!
I don’t currently have Twitter simply because I find it to be a gigantic rabbit hole to nowhere satisfying. I wouldn’t even be on Facebook anymore if it weren’t for the ability to create interest lists so that I never have to use the News Feed.
I also checked Youtube, but there were only a few videos and none of them looked even remotely interesting. At least there is the decent, frequently updated Facebook page.