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A lot of people are now getting into online bitcoin mining. So many that some online mining companies no longer sell any mining contracts because they ran out of mining rigs to mine on.

yeah it seems very popular
I've been GPU mining for about 6 months, only 4 card rig but been thinking about expanding but I might go this route

0.1 BTC free for mining-you can buy 9 th/s lifetime , offer limited time https://seebit.io/?r=56086

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