I dont know about other website but please dont buy on cex.io it baseless and useless, just some awesome web design 

cex.io is good if you want to trade hashrate, but it is very bad if you just want to hold the mining contract. I agree with you that it is the most trusted cloud mining site, but the price is just too high.

There are only few cloud mining services that I would trust and use. If you need more help choosing the best one for you then look our short reviews at http://www.dailycoins.net/mining.html

Using hashnest and cex.io here...

A reputable cloud miner is AMHash, check out hashie or havelock

but just to be careful of scamer member on btcjam and bitlendingclub

badbitcoin.org didn't warn about PBMining being a ponzi until about a month ago so it's definitely not listing all scams. In reality most of the cloud mining offers are probably ponzies.

badbitcoin.org has some kinda relationship with GAW. They are promoting GAW's Paycoin scam. Do they list GAW as scammer ?

all i know is mining contracts are sometimes scams, you better mine on your own or buy bitcoin and start trading

Makes sense that you are spreading FUD along with promoting a ponzi in your sig.

bitcoin-is-the-worst-investment-2014 is incorrect on so many levels:

1) Bitcoin average is ~3x higher in 2014 than the average in 2013.
2) The USD has lost 99.99+ % in value against bitcoin in the last 5 years
3) even if you were unlucky enough to only invest in a small 3 week window where bitcoin peaked there are many other investments and stocks that lost more than bitcoin.
4) Buying bitcoin low is exactly when any investor should be purchasing and you can only comment on the value of the investment in hindsight