Asana (http://www.asana.com) is a startup aiming to enable teamwork without email. Founded by Dustin Moskovitz (facebook founder) and Justin Rosenstein, they make a web-based collaboration tool. It centers your communication around tasks and projects, to let everyone understand how work is going, as well as to reduce the burden of too much email.
Asana is hiring (https://asana.com/jobs), especially in engineering.
Start: Fulton & Larkin (the usual spot here (https://goo.gl/maps/YSfQi))
End: Asana, 1550 Bryant St ( https://goo.gl/maps/ZQhj2 )
Route - Google maps (https://mapsengine.google.com/map/edit?mid=z1qUi7W0k64U.kx7VPOUijA9E)