Hi,

I am doing a deep research on all the available mining contracts

Opened or in process of open accounts at :

1) http://cloudhashing.com/
2) http://www.bitcoinfrenzy.com
3) http://www.minerlease.com/
4) http://www.bitcoinhashing.com

If you know another operating or close to be operating contractors please let me know.

Also I am starting  a website to publish related info and the experiences I get with each one.

http://www.topminingcontracts.com

All the best