I spent lots of time working for ad agencies in NYC; while there I noticed that their clients kept asking them to identify and engage influencers. They constantly had a hard time with this and more often than not the client was disappointed so I developed a utility that allows them to identify and engage influencers.

By engage I mean; incorporate them into existing ad campaigns.

That's spooky - I actually have a small contract with a PR firm to do the same thing for Twitter and blogs, and I recently ran into another local startup focused on this.

My advice would be to spend your time growing the business and possibly hiring folks to handle the non-techie side if possible. There's a point at which the risk has been lowered enough that the co-founder level of reward isn't appropriate, and it sounds likely you're there if you're making decent revenue.