The MS-150 fund-raising bike ride from Austin to Houston is in progress at present. The MS-150 is a bike tour that raises some millions of dollars annually for research into treatment and cures for multiple sclerosis. I have participated in a similar fund raiser (the Pan-Mass Challenge, for the Jimmy Fund), and am somewhat familiar with this kind of thing.
I wanted to hilight a neat thing going on this year. My friend Steve works at National Instruments, and he told me about the team they are fielding this year, which, appropriately enough, features fully instrumented riders, whose vital signs and position data is updated live to the web. Check it out here. Very cool.