To follow up last Friday's post on neighborhood walkability, we turn to the bike. One reader last week asked about similar Google Maps mashups for cycling. After a deep moment in thought we recalled a site discussed a few months back on Planetizen. Originally www.therightride.org began as a site to identify dangerous areas in Boston for cyclists. Since then it has expanded to include 'safe routes' as well as launching similar sites for a couple of other cities. Like all sites that are dependent on reader supplied info, the site is only as good as the data that is entered. From the looks of the opening page though, many cyclists in Boston have loads of opinion's on what routes are good and not so good.