Visit these sites for artist calls:
SmarterEntry.com – Smarter Entry is an economical, fully integrated, web-based competition and call-for-entry management system. Smarter Entry will handle registration, fee processing, submission, and jurying functions, so you can focus on running a successful event at home, or around the world.
CallforEntries.com – A searchable online guide divided into art and photography sections to help artists and photographers find art calls and art opportunities.
ArtCall.org – ArtCall.org features online entry submission software for art galleries, exhibits, festivals, & shows to effortlessly manage calls for entry.
ArtShow.com – A listing of art shows, call for entries, workshops & retreats, and tutorials.