2011 pools listed on https://en.bitcoin.it/wiki/Comparison_of_mining_pools: Eligius (closed), P2Pool (still up?), BitMinter (closing July 1, 2020), BTCMP (closed)

I mined 2013-present first (and last!) on BitMinter, with lots in the middle on GHash (closed) and Eligius (closed).

I am sad to see this happen.  I mined my first 0.01 BTC on Bitminter in September of 2013.  I keep a set of 20 Bitmain overclocked U2s on my desk pointed at the pool even today.  Thank you for providing a pool so accessible during the critical nascent explosion of this marvelous new technology.  Sad to see it close, but if there are not enough miners using the pool, it seems like the only reasonable choice.