Facebook allows users to share status updates, photos, and live updates and the author uses it to keep in touch with friends and past coworkers and classmates. Instagram lets users post and send photos and videos, share content with Facebook and other apps, and the author uses it to edit and share photos on other sites like Facebook. Pandora allows users to listen to music, choose favorites to build playlists by track or artist, and share tracks or stations on Facebook or other media sites.