Even though I have been hating on StoryLink I did find something good that they have to offer. Coincidentally it is the only thing they offer for free. I think that means something. Anyways, they have a great resource on their site – a list of upcoming contests for screenwriters.
You can sort the list by deadline, fee or title. I have no idea how often it is updated. Regardless, this is a pretty decent resource. Just don’t get sucked in by the other crap on the site. Or you just might bankrupt yourself paying for all of their various services.