» SFB says: We use an ad-based model, but honestly, SFB hasn’t been so much about the business side of things as experimentation with news. So if it doesn’t make us rich, no big deal. It’s great for trying things. It’s great for taking risk, though. I’ll say this much, though: Advertising is a tough game on Tumblr, because most of your readers go through the dashboard where there aren’t ads, and ads on the dashboard would be controversial — you saw the frustration with the “highlighted” posts of late, for example. An open mention, by the way: If there was an ad-type who wanted to talk with us about all this, or who had any ideas for monetization, we’re totally game. It’d be great to make this something we could pay the rent with, but honestly it’s not our 100 percent focus. — Ernie @ SFB