The CWAL Rubber Room
"It's noon-forty right now. MID-DAY IS OVER. WHERE ARE MY MONKEYS!?!" - Psycho Sam!
As a side note, on further consideration, I'm not sure I'd characterize the Culture series as anti-capitalist the way Stross seemed to be on Twitter. Whatever Banks' own opinions (and they were certainly pretty left-wing), the books only really bother to make much of a case against capitalism if you're technologically advanced enough that resource scarcity stops being a thing entirely. There's even a bit in one of them when, confronted with something that is unavoidably scarce by nature (a seat in person at the opening performance of a symphony) his utopian citizens spontaneously, if temporarily, reinvent money.
I always see his writing more as an indictment of dominance, bullying, that sort of thing.