A repository of sightings to aid modellers in determining for example:

• Locos which were common around a specific region/location in a specific era;
• Typical coach formations.

If you're mad enough to have done something similar, feel free to email it through.

Provider	Era	Notes
Railtec (650kb)	1983-2007	Crude text only. Open in browser or right-click and Save Link/Target As.
Rolling Stock Observer	1981-1998	Link opens in new window.