Obviously, I use this site to publish my book reviews. In addition, I use Facebook to keep in touch with many friends. I use Safari to find answers to questions that pop into my head, And google maps to plan trips, mostly to local spots. I play Scrabble on line with a few friends, subscribe to three magazines online and borrow ebooks or audiobooks from the library. Since Covid, I have used Zoom to connect into three educational outfits. I guess some of these uses are not strictly social media, but more just internet use.