I am currently acquiring quality single word keywords in .ws and .cc myself. I only get ones that would be popular and good business related keywords. I am a little more picky with .cc than .ws since they cost more to register and renew.
here's a few I've picked up recently:
BURGERS.CC
PIZZAS.CC
HAMBURGERS.CC
TRUCKING.CC
BREWING.CC
BEERS.CC
LETTERS.CC
PREMIUMS.WS
SALOON.WS
PHYSICS.WS
MOBILES.WS
HEALTHCLUB.WS
JOKERS.WS
TRUCKDRIVING.WS
RECEIVERS.WS
SUPPLIES.WS
SUITS.WS
Genius.cc went for $365 on Tdnam today, and that was probably not an end user. I sold aquariums.ws about a week ago for $300. The sales aren't huge, but you can still get good keywords for $25-$75 and turn a profit.
Unless ICANN releases some new TLD's soon, I think .ws and .cc one/two word generics will see some nice growth and more valuable. Aso .tv, but only if related to television in some way.
I also get quite a bit of traffic on some of them with these uniques in the last month on ws and cc domains (although some get no traffic). I think type-in on a cc/ws shows how strong a keyword really is:
jury.ws. 4,542
late.ws 1,151
lotterytickets.ws 237
rockband.cc 82
specialoffer.ws 65
cardcollector.cc 62
freepic.ws 50
digitalphoto.ws 49
images.ws 52
I was dead against cc and ws about a year or two ago, but I think it has some potenial when you talk quality generics and are in a position to wait for the right buyer.