Mapometer - a well implemented way of tracing and saving a route onto a Google map

Thanks to Nicky Ferguson for sending me a link to Mapometer. You can use it to trace, save, and share a route on a Google Map, Mapometer estimates distance, energy used, and height gained. This example of its output is my regular (well, not that regular) run from my front door. Serving a different function is Where's the Path, which enables you to view an Ordanance Survey map side by side with a Google satellite image of the same terrain, there by working out where in the landscape a route lies. A mashed together version of these two services would be a killer application for fell-runners.