The way this "scaled" at Matasano was that we gradually got smarter with our outreach, so that instead of constantly circulating wide appeals to the whole developer community, we staged events (Cryptopals, Microcorruption) that targeted a specific community of enthusiasts with whom those phone calls were likely to be valuable to us.
But in the beginning, we just posted on the HN hiring threads; it's a fine starting place. That's what we're doing now. I'll do a couple phone calls a day at this point.
The way this "scaled" at Matasano was that we gradually got smarter with our outreach, so that instead of constantly circulating wide appeals to the whole developer community, we staged events (Cryptopals, Microcorruption) that targeted a specific community of enthusiasts with whom those phone calls were likely to be valuable to us.
But in the beginning, we just posted on the HN hiring threads; it's a fine starting place. That's what we're doing now. I'll do a couple phone calls a day at this point.