Happy new year all!
I'll be brief: last year, the BBC put a lot of digitised paintings online: http://www.bbc.co.uk/arts/yourpaintings/
For the GLAM list (cultural-partners), I made a list of artist links: http://en.wikipedia.org/wiki/User:Magnus_Manske/Your_Paintings
Charles suggested it might be of interest to this list.
Cheers, Magnus