I've been trying to figure out a way to make an urban rail map. NS really needs one but nobody has come up with a way to do it yet. I'm starting a flicker account for uploading and geo-tagging urban rails, drops, or whatever might be cool to hit on skis. Check it out here http://www.flickr.com/urbanrails/map/
If you want to log in to add content, the username is "urbanrails" and the password is "123456". To add photos just upload them, when that's done click the arrow next to "Organize" and click "Your Map", then just drag the photos onto the map and it sets the location.
This isn't the best way to make a rail map since anyone could log in and mess with the photo's but so far it's the only way I can figure out how to do it. Maybe if this works alright NS will see it and try to make a legit rail map that everyone can use.
