With Twitter reaching its new Tweets per second record it reminded me about One Second On The Internet (get your scrollbar ready!)
10 years ago Skype, Facebook, YouTube, Reddit, Twitter, Tumblr, Dropbox, and Instagram didn't exist.
20 years ago there were only 130 websites total, Google wasn't even around yet, and you had to pay for an email account through an ISP.
30 years ago there was no internet.