how do i join and which is best?
If you post a lot, pick Pocket Dice, if you do not, pick Cryptomine.io, if you post over 50 posts a month, or FortuneJack if you don't. How to join said campaigns is in their threads 
BIT-X.com pays out much more than any of the above
https://bitcointalk.org/index.php?topic=877765Ok I'm tired of this guy's bullshit...
marcotheminer has been running a Signature Campaign Scam for a long period of time...
He applies to be the escrow and Signature Campaign Operator of multiple Signature Campaigns and plays it out until no one is applying anymore or the Signature Campaign dies.
Then while people are still in the Signature Campaign but he doesn't feel like continuing it because people are losing interest and dropping from it like flies he hops to another Signature Campaign to Operate it and every time it has a slightly higher amount per month because the new Website / Service has to compete with the previous highest priced Signature Campaigns he was Operating.
This guy is a complete tool and I highly recommend avoiding any Campaign he has anything to do with.
Please negative rate marcotheminer and I hope I made it aware to you what his true intent is.
I'll be going through all his Alt Bitcoin Talk accounts to show you how many times he's been doing this.
I don't think he is scamming personally. I may or may not be wrong on this, but even if he does run away with the campaign funds bit-x will likely make good on the payments. They seem to have a large marketing budget (they already spend 30+
on forum advertising).
He has spent a long time on here, has multiple business ventures that would likely be ruined if he did pull a scam like this.