The only viable options I've seen are:

Cloudhashing.com (The price makes sense... against mining calculator I checked a few days ago, it should make ~$1600 a year if you spend $999 for the silver contract.

Digitalocean.com - Because the price is only .005 an hour for a linux machine, you can make a little money each month if you mine primecoin and sometimes memorycoin, but their price drops are hurting the profitability.

Also, butterflylabs is offering a $10/GH, which makes financial sense at current price of ~630. Still, this is only a pre-order option. (The $30/GH option through nimbus doesn't make sense).