The initial screensaver of the social network on twitterThe initial screensaver of the social network on Twitter
Ads for samsung smartphones - models in three different colorsAds for Samsung smartphones - models in three different colors
History of social networks: youtube, twitter, facebook, skypeHistory of social networks: youtube, twitter, facebook, skype
A man in a white shirt holds a smartphone in his handA man in a white shirt holds a smartphone in his hand