I think often about "Killing Time at Lightspeed," an interactive short science fiction story told through a social media interface. Putting a "reminds me of" behind the CW because it's a spoiler, you should just play it. http://www.antholojam.com/gamesite/ktal.html
As you access a Twitter-like site intermittently over many years due to the time dilation of space travel, you watch all of your friends leave this site for another one, until all that's left is ads and bots. It's admirably well done.