Not sure how best to get the word out about this, but I just posted about ShuffleComp to IFDB, both by creating a competition listing and by posting a “news item” to it.
Competition news used to disappear down the memory hole very quickly behind all the other reviews and new games, but since our November home page redesign, competition news now appears prominently, usually for a few days at least.
I invite anyone (but especially anyone organizing a competition or jam) to post competition news on IFDB.