anybody can walk into zinga?>> you have to sign up, because we can't have too many people, but it's a way of people in san francisco -- >> it's a festival? >> to go visit the actual company. >> that is great. no way, not that i have anything to do with tech crunch anymore, but no way i would want people randomly walking into tech crunch, . >> it's a great open house and to kick it off, we have got a start-up map that we're launching. >> we have a start-up map? >> yes. >> and your chief innovation officer jay is backstage and he is going to show us something. you will have is to explain what this is exactly. >> the start-up map that is supposed to appear here in a minute. >> there it is. >> it's an interactive map that shows all of our -- some 800 plus start-up companis in san francisco, where they are located and information about them and we're launching this for the public to understand just like we do in one of our greatest industries, like tourism in the city. to locate places people know where it's happening

. >>> with the pressure on, zinga launches farmville part 2. coming up an exclusive behind the scenes look how the game was made. >>> the nfl kicks off the season right here at number bay area at 5:00. startling information regarding head injuries. the information changing the way the game is played. >>> well, it's been a struggle for the bay area's biggest gaming company so they're taking another shot at it tonight. >> zynga g a going back to the that launched the company. we have the newest farmville, and zynga needs a help. >> social gaming was supposed to be the next big thing, but zynga has stumbled and needs a big success. it's a new farm powered by the late latest technology with big goals. >> we want it to be the best five or ten minutes of the player's day. >> reporter: farmville 2, sequel to the game that helped launch online social gaming and zynga along with it staggers to a stock price less than a third of what it was when it went public, zynga needs a hit more than ever. >> any game you make, there's a lot of pressure. for this on

. >> i got my ice cream at zinga. >> what are some of the other points, what is point no. 8, for exampleoint no. 8 is probably improve sf.org, that is a website where we invite -- it's a platform where we invite the public to tell us what they need to get improved in their neighborhood. then we ask tech companies to help us find solutions for that. that is how we keep engaged. that is how we bring technology right to the neighborhoods to allow people to suggest how we improve. you are asking the population to tell you what is wrong? >> absolutely. =::év2 it's better than them coming to the mayor's office to tell me everyday? >> they do that? >> oh, yeah. >> >> they just show up to the mayor's office? when i go to the tech companies, they usually give me 15 minutes with the employees and i listen carefully to them because they have the talent and if i can satisfy them and they stay in the city, the tech companis will stay in the city. >> any other points that you want to talk about? >> sf city is our citizens initiative for technology and innovation. that is what i call the technology cha