WOW! There are a lot of internet sites listing competitions for artists. I found numerous sites that have multiple listings of art competitions and juried art shows. I found competitions for works in The Artists Magazine and in The America Artists. I also found a site that is looking for a new stamp design.
I printed up the information from some of them. My next step will be to review all the criteria and eligibility requirements along with the deadlines and see which ones interest me.
Here is a listing of some of the sites I found.