yea I do with
www.adultwebmasterdirectory.com.
To be honest it's far from being a goldmine compared to b2c.
But if it helps the community, fuck it it was worth it.
Selling the banner spot is actually much more profitable than the referral income.
Getting paid listings also helps.
my advice: Don't make it your n#1 prio unless you have a major plan and are okay to be in negative for a while..