OpenStreetMap
Tricky but satisfying. Spent a few hours mapping in my first bus routes including stops:
osm.org/?relation=68223
osm.org/?relation=951277
JOSM's relation editor is good for this and the public_transport plugin can be used to auto-add stops. Don't use both at the same time though and make sure the relation roles are properly specified before adding the stops.
As a side-effect, I also stumbled across (and fixed) a few way issues too..
Discussion
Comment from Kevin Steinhardt on 6 June 2010 at 20:15
You have to be careful when using that plugin. I never automatically add stops; I hardly think that the 26 calls at *all* bus stops at the central bus station, nor all three of the stops at the hospital.
Comment from Mezzanine on 6 June 2010 at 21:17
Indeed, neither route is completely finished yet... The 'suggest' stops was a good start though. In most cases where it added erroneous stops, it indicated that I had a bad role setting or misaligned way/naptan stop.