I get ~$50 / month off of 5-10k visits per post (lifetime visits that is, posting weekly).
Yes, I'm on the far end of the bell-curve there, because I cheat, and have actual rewards for people who donate (it's a game development blog). But a surprising portion of those who donate say "no thanks, don't want anything," so that isn't the entire reason.
I won't link it here (my site is visually SFW, but deals with NSFW content regularly), but I recently wrote an article containing the story of my first computer (you can find it with a search for Women in Technology BlueWinds if you're interested).
I was too young, I don't remember much about the computer itself - but it had a big TURBO button on the front which could switch it from 20 to 40mhz. Turbo indeed.
Bitcoin (through Coinbase). I produce adult games mostly as a hobby, but last year received several thousand dollars in bitcoin (not counting the price increase).
If I were serious about making money or leaving my day job I'd have to accept credit cards in some form, but for now I'm happier not having to deal with all the hooplah of setting up a merchant account etc.
Yes, I'm on the far end of the bell-curve there, because I cheat, and have actual rewards for people who donate (it's a game development blog). But a surprising portion of those who donate say "no thanks, don't want anything," so that isn't the entire reason.