mike met studying at stanford university. kevin worked at a company later known as twitter. he shared a desk with current twitter ceo, jack dorseyke came from his native brazil. do you remember mike, meeting kevin at stanford? >> i remember talking about the company that became twitter and we talked about it. >> we barely knew each other in college. it was when i left my job at a small start up. i wanted to start something independently. i met mike in a coffee shop. she was working on -- hacking on a project. i was like cool, he's hacking on a project, seems smart. >> while in college, kevin turned down an offer from a young entrepreneur to work at a company he was building. that entrepreneur was mark zuckerberg. the company was faceok >> i remember meeting o of my mentors and i was like hey, should i do this facebook thing. the person said, ahh, it's a fad. >> reporter: in 2010, four years after graduating stanford, they got together to start their own company. their first idea, a company called bourbon, didn't work out. they took what they learned from the experience and in the fall of 2010, launched instagram. in less than th