With the advent of social media there is more potential than ever to advertise yourself to the world or just your friends. Unfortunately a bi-product of this seems to be the certain level of arrogance people display when talking themselves up and on no website is that more fully realised than on Facebook.
While it is great that you can contact your friends and share events and things that are happening in your life, too often you see people using it as a tool to stroke their ego and promote themselves. An example of this is when people attach themselves to a cause or plight by liking a page on Facebook in order to make themselves look righteous, despite them doing very little to contribute to the combat of it. The sharing of photos and statuses of asinine activities is also another example of potential arrogance, though that may just be a subjective one for me.
Youtube is worse in this regard in that people can actually make money off of this narcissism, as is evidenced by certain channels consistently shoving RATE, COMMENT, SUBSCRIBE in your face in order to gain them more ad revenue, as well as other videos and channels which clearly care about little else more than a positive public profile or financial gain.
The ability to spread your public profile and maintain positive relationships with your friends is an admirable trait, yet it is one all too commonly abused to talk yourself up and spread an arrogant persona across the internet, creating a wave of website- wide narcissism in the process.