Genius is in the same boat. A decade old, failed premise (turns out people don't actually want to annotate everything), failed expansion plans (so... back to lyrics then), no business model. At the mercy of the VCs, they'll eventually be passed around for $10m or $20m like MySpace or Tumblr.
These companies are this start-up generation's About.com (or the latest eHow).
Simple rule for anyone doing a knowledge service: if you put the profit motive over the knowledge motive (which is the only choice if you take a lot of VC), your service will end up in the dustbin of history, no exceptions.
It could disappear tomorrow and leave barely a memory.
Worse yet, the site is full of dumb answers as well.