I'm selling BitcoinMiningRigs.com at Flippa.
https://flippa.com/3014369-bitcoinminingrigs-com-established-pr3-bitcoin-site-with-growing-traffic-and-revOpening bid is $100
Auction runs for 14 days and ends 4/10/2014 9:30AM PST
Site currently gets ~15k page views/mo with ~7k uniques.
I acquired this domain a few months back from it's original owner and setup a bitcoin mining rig picture/video site with customized template and user submitted content. Real value is in the domain however as I'm sure you all know. Selling the domain to an established manufacturer of ASIC miners could be huge.
I've done deals on domain sites in the past and just closed a private 5 figure site sell a few months back.