Do you know where your first 10 employees are going to come from? How about the next 10? 99% of the time your best hires will come from your staff's combined network — you might already know that. But do you know how to go about mining that network so methodically that you get the most out of it? Probably not. As co-founder of talent discovery startup TalentBin, this is my bread and butter. This article is about how to proactively mine all the networks you have access to for early-stage hiring excellence. As a startup leader, it's critical to land remarkable first hires because that's where your next hires will come from. A lot of people talk about this, but they rarely walk through the nuts and bolts of how to do it. The key: Aggressive referral recruiting.