Sean Parker's other notorious startup, Plaxo, is finally dead -- here's how it influenced Facebook

Steve Jennings/Getty Images For Techfellows Comcastis officially pulling the plug on an online address book called Plaxo on December 31. Plaxo isn't well known these days but it is a startup founded by famed Valley entrepreneur and investor Sean Parker. Parker's experience at Plaxo greatly influenced the early days of Facebook and is one inspiration for why CEO Mark Zuckerberg locked down his control of Facebook. Comcastis officially pulling the plug on Plaxo on December 31, 2017. Thus ends the ...