I was wondering where people go to sell domains these days when they need to do a portfolio clearance?

Obviously, there are the paid marketplaces, but I am looking or some place where I can sell some low-grade (as in below $100) domains where there is a consistent supply and demand for such products (domains).

I've had some success with a couple of sales in DB but obviously DB is not a specialized site for domain selling and the large quantity of people come here purely for the information...

Where do you successfully sell non-premium grade domains besides DP?