My pool is still up and running:

https://bitgem.alfter.us/

I've not been mining on it lately because my four-year-old Gridseed miners aren't worth running (I'm doing GPU mining these days with four 1070s), but I've seen others mining from time to time.

Also, I've developed some maintenance fixes for the Bitgem codebase to deal with updated libraries (Boost 1.66 is causing breakage for lots of code right about now) and to build on BSD (I've been staking on my FreeNAS box).  Get them here:

https://gitlab.com/salfter/bitgem