This is pretty much old hat. Duotrope[1] is one of the larger market listings. There was a big huff after they turned to a subscription model, which led to the

This is pretty much old hat. Duotrope[1] is one of the larger market listings. There was a big huff after they turned to a subscription model, which led to the creation or expansion of The Grinder[2]. At Aliterate[3] we've seen about 25% of our inbound submissions coming from each of The Grinder and Ralan[4]. The balance is some mix of Duotrope and smaller players. [1] https://duotrope.com/ https://duotrope.com/ [2] http://thegrinder.diabolicalplots.com/ http://thegrinder.diabolicalplots.com/ [3] https://www.aliterate.org https://www.aliterate.org [4] http://ralan.com/ http://ralan.com/