Facebook filed to go public this week and the entire tech world turned its attention to the filing document, the S-1. It revealed some impressive numbers: 845 million monthly users on Facebook, about half of them on mobile devices. It also showed that Zynga accounted for 12 percent of Facebook’s revenue. CEO Mark Zuckerberg, in a letter embedded in the S-1, also took pains to tell potential investors that Facebook would try to maintain its "hacker culture," as well as its focus on connecting people to each other, as opposed to connecting shareholders just to revenue. There’s a lot to unpack in the Facebook filing, and we have two great guests to help us walk through it: Josh Constine, a writer at TechCrunch and fomerly the lead writer of Inside Facebook, and… Shervin Pishevar, a venture capitalist in Menlo Ventures and an entrepreneur Bonus: Shervin was an early investor in Klout, so I asked him some questions on that product, after the main show. The video is embedded at the end of this post.