Critically 20 years ago, nobody could have pictured living without AOL, they had search, the directory, email, Aim - and connectivity. 15 years ago, few peopl

Critically 20 years ago, nobody could have pictured living without AOL, they had search, the directory, email, Aim - and connectivity. 15 years ago, few people could have seen a world without Yahoo. 3 months ago Dorsey said Twitter is an essential part of the internet.