We can say that bitcoin is now very well known by so many people who know it. And it's famous. Bitcoin is a form of digital currency, created and held electronically. No one controls it. Bitcoins are not printed, like dollars or euros - they're produced by people by using some complex algorithm which is called Bitcoin Mining.
One of the factors that Bitcoin is being famous because of social media. Social media has been accessed by many people. Social media unite Bitcoin users and owners in order for them to share their knowledge to them. Being popular of Bitcoin is a good impact for those who invest and hold a lot of bitcoin, because if Bitcoin is getting popular, the demand is increases and if the demand increases, Price will getting increase. Bitcoin users always wanted to earn a lot of Bitcoins so they joining signature and bounty campaigns that ables them to share what Bitcoin is.