Warpdoor started posting updates again today. They are a very, very good curator of indie games as they are willing to post a wide variety of content, including small, unpolished, experimental stuff - and when they're active, they tend to post several games per day. My game Bileview reached "fresh games" on the front page of Itch because they tweeted it out. :)
There is also "Weird Fucking Games", who post more experimental and artistic games on twitter. They also do a bi-weekly e-mail newsletter that contains links and descriptions of all the games they had curated in that time. https://twitter.com/wf__games