BikeSharing - Easily borrow a bike anywhere
Scorpio - Track your rides, monitor your bike's security
Cowboy - Small, fast, modular HTTP server written in Erlang.
Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.
Karmic Bikes - Modern electric bicycles handcrafted in SF
Scoot Networks - Electric scooter rentals for $2 one-way to anywhere in SF