The social media conversation is anchored to the idea of transparency in all PR and communications. It’s an interesting evolution that requires company spokespeople to be willingly open. Reading through the recap of this week’s TechCrunch40 event, I was impressed by the number of panels focused on business models for startups (from getting funding to selling the company). More interesting to me were the detailed recaps of two panel interviews: one with Mark Zuckerberg of Facebook and another with Marc Andreesen (Netscape and Ning), David Filo (Yahoo!) and Chad Hurly (YouTube). Clearly, these entrepreneurs have embraced transparency, which resulted in very compelling interviews.