The document discusses how the internet is becoming globalized with users everywhere in the world. It notes that non-US users now account for the majority of internet users globally. Many countries are leading in different internet usage models and businesses must localize to various markets. The considerations for businesses expanding globally include issues like market size, legal/tax issues, infrastructure, and adapting to local user preferences. Examples discussed are how companies like Facebook and Twitter are seeing most of their growth outside the US now.