First, the new organization looks good. Nice job.
I know you have already acknowledged that browsing by region is "sticky" but let me say last years's ride share was great.
Under eplaya it was Getting There>Regions>West, Southewest, etc.
Now you have to read through a lot of posts about everything for share, to find someone wanting a ride from your area. searching makes it a little easier, but last year's setup really was cool.