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.
The first time I heard about Bitcoin was when I saw it on the news and so I looked it up on the internet. And now I am here making use of Bitcoin and sharing my information on all these forums.