The internal IT department, headed by the CIO, no longer acts as the gatekeeper for all new technology coming into the enterprise. IT may stand at the gate to the castle, but SaaS and social media startups are swimming across the moat. Internal IT can still set fire to the moat and otherwise make life difficult. But how do you make this a win/win relationship, so that they welcome your entry? Start by understanding how IT is thinking about social media.