Charlie Crissman, race director for the Cascade Crest 100 Miler recently emailed me about a RideShare widget that allows runners to coordinate getting to races together.. and thus save the environment. pretty cool.
"We recently put out a free (very simple) rideshare widget that can be added to an existing web page in 10-15 mins.
For an example check http://www.seattlerunningcompany.com/WR50/rideshare.html
For information on adding the widget people can go to: www.goosenetworks.com/services/widgets/rideshare