I added two new features: 1) Weekly rental rates and 2) A map that comes up when you do a board search. Check out the link below to see all the boards in the San Francisco area.
I wrote a little article about it and compared it to surfing in Southern California because I don't have experience surfing in Northern California. I intend to correct that this spring, and I can already tell that Northern California has a more open, friendly, and inviting, (and maybe common suffering), thing going on than Southern California.
I threw out a new feature on Global Quiver for everyone that was concerned with rental liability and with board renters fleeing to Mexico with your board. Now you can sell your board and buy it back later if it's still in good shape.
When you click Add a Board, you'll see the option for this (assuming you're logged in).