justtweetit.com: Museums » Tweeters Directory » Just Tweet It
Find others interested in museums on twitter
entsweb.co.uk: Museums - Entsweb Directory
A listing of Museums and museum exhibitions around the world
rodin-web.org: Museum Directories
The International Council of Museums Website includes Virtual Museums, a global directory of Museum Websites, sorted by country.
Add Site or Add URL to Submit Site to the Directories Directory