I heard it back in 2011 where in there was a huge hype of mining Bitcoin using GPU's and there were numerous facebook groups where they posted they rigs and also had many tutorials for other to follow or even customize their rigs in order to work better.
I heard about bitcoin talk 1 month ago from my friend , he told me about how to work in bitcoin and share some video about bitcoin talk.
I heard about bitcoin talk from my friends about a year ago, then I was planning to start it, I was to much excited to do this job.Now I am happy to go with the bitcoin talk and appreciate to my friends.
yeah we should be thankful to them for bringing us at the best place where we can earn some good amount of bitcoins on regular basis.