How do I hear about craft shows before they come to my neck of the woods?

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Hola crafty ladies:

I wanted to start selling my crafts at shows and such, but how do I go about hearing about the show and signing up before they come to town? Are there mailing lists I can join and such? I think it would be so much fun, but I never hear about a show looking for vendors until it actually gets to my area and then well you can't just sign up then! :) Any ideas are greatly appreciated!

Oh I'm in the Sacramento, CA area, but don't mind bay area venue news also!