What Are Pinterest And Diaspora Good For?

I joined both without a specific use in mind, mostly to snatch up some approximation of my own name before all the other Sarah Averys got there. At Pinterest, as at Twitter, I am SarahAveryBooks. At Diaspora, for once, I seem to have been the first Sarah Avery to the party. (One day my kids will thank me for their unusual names.)

It's totally unclear to me how I will end up using these social media sites, or even whether I'll use them beyond a couple of weeks to poke around. I barely use Twitter, except to broadcast livejournal posts. On the other hand, when I started at livejournal, I genuinely thought I'd only be using my account to comment on other people's blogs. You never know.

So, are any of you guys at Pinterest or Diaspora? What are you up to over there?