I've mentioned this a few times in the past, but this is an update to those posts. My local printer also runs a couple of notification lists for artists and photographers, and the sign-up location for them has moved.
There is now a single page that has two forms: one for photographers, and one for artists. When you sign up for a list, you will be notified of new juried shows and exhibitions for photographers or artists. The notifications are mainly aimed at southern California residents, but some are more broad.
If you're into doing shows, exhibitions, or contests, you might want to sign up for the appropriate list and see what comes through.
PHOTOGRAPHER AND ARTIST NOTIFICATION LISTS