It's not the service you base it off of, it's what the people you're following on the service share. If you're friends with a bunch of people on facebook who sh

It's not the service you base it off of, it's what the people you're following on the service share. If you're friends with a bunch of people on facebook who share hollywood/pop culture stuff, that's what you get. If you follow a bunch of geeks on twitter, you get the topics that show up on HN.