Charlotte and Lyra are up in the United States so it's just been me, Cora, and a rainy week (now followed up by getting sick): a perfect recipe for writing software on my laptop. I've been messing around with the idea for thekeel.com for a while, but it's really starting to firm up in my head now.
Links back to blogs or web sites. The reality is that there is a lot of passage data scattered around the Internet, so thekeel.com allows those to be connected to the route themselves. So you can look around the map, find routes others have taken, and then find resources they've found or created. An example of La Paz to Banderas Bay.
Visually share routes and current location. Similar to what's on the front of therebelheart.com, you can show your current location and all places you've been. Plus, this information can be updated offshore by sending a very small formatted email. Friends, families, and anyone who goes to your website (if you have one) can see pretty easily where you are and where you've been.
So if you have some gpx files from your GPS receiver, give it a shot. Hopefully it's of use to you and feel free to hit me up with any questions or comments.