I’ve mentioned before how much I admire the Run London web site from Nike. Now they’ve added a Google Maps feature that gives users another reason to come back and share. Although I’ve categorized this story as "community building," Nike is making itself useful to the runners of London as well.

Run London with Nike (via ClickZ story by Zachary Rodgers)

You can become part of the Run London community any time throughout the year just by signing up when it’s time for the next 5K run. …Just leave your email address below and we’ll be in touch.

Plot your route to measure the distance, then save it to share with the rest of the red shirts. Search by postcode, route-length or type of run for routes tried and tested by your fellow London runners.