The domain name Effort.com sold yesterday on NameJet.com for $17K. Its a nice one word .com but don’t think it would have gotten any bids if it was say in the live Domainfest auction with a starting bid of $20K.
Here are some other notable sales including more one word domains:
prosecuted.com, another one word domains went for just $650
Finally a pretty rare 2 letter domains, ww.biz could only manage to get $1,200.