I've just heard about a new website funded by the Belgian Horsemanship Association which will provide a resource for laymen to get hold of scientific papers relating to behaviour and training. It's quite small at the moment but got the potential to be very useful.

http://www.horsemanship.org/
http://www.horsemanship.org/research

There will be copyright rules which stop you getting to some of the papers unless you're a subscriber but they seem to be planning to at least provide summaries of papers.

(And my university subscribes to some of them so if you want a complete paper then I might be able to help!)

Catherine

This one's not active yet but the owner is planning to put her research into wild horse behaviour on it and so I'm really looking forward to seeing what she says.

http://www.equinebehavior.com

And this one is the British Library who will apparently send you photocopies of any scientific articles you can't find elsewhere

http://blpc.bl.uk/