BEWARE...Do your own research, as we have found that these are some of the Crypto Currency SCAMS online...
Chain.Group website was a big scam and sucked people in then in the middle of December 2017 deleted there site. You can visit the internet archives and see their site. https://web.archive.org/web/*/http://chain.group
TheBitGoldMine website (www.thebitgoldmine.org) was a big scam and may paid you once or twice to sucked people in but then never pays you again. There are many version of this site with .com, .net. co, etc. You can visit the internet archives and see their site. https://web.archive.org/web/*/https://www.thebitgoldmine.org
CCGMining website (www.ccgmining.com) looks very nice but they do not have a wallet payout listed anywhere. We would consider this a 95% scam so beware. You can visit the internet archives and see their site which came online in Nov. 2017. https://web.archive.org/web/*/https://www.ccgmining.com