Get yourself Googled: online representation resources
For artist registries in an area you may be moving to, Google search artist registry (state/city/province). Many local governments and galleries host artist registries that you may be able to participate in.
ArtistsRegister.com is an online service of the Western States Arts Federation (WESTAF). This fee-based service provides juried online representation for artists of all levels. Also has a good set of resources and links for artists in the West.
Creative Commons is a non-profit organization that provides a portal to artwork of any kind under their license. They are changing the way people use copyright by having a 'some rights reserved' copyright. Your work is still protected, and can be seen by anyone using their site. *This site does require that your work be hosted online elsewhere.
White Columns is an alternative space dedicated to unrepresented artists in New York City. Their online registry is curated, and while it does focus on NYC artists, they also accept submissions from 'outsiders' as well. If anything, this is an amazing site to look at to see what other people are making.