I'm not sure people heard of pets.com outside USA. I never did, for instance. As for Twitter, people have heard of it in EVERY single country I've been lately (

I'm not sure people heard of pets.com outside USA. I never did, for instance. As for Twitter, people have heard of it in EVERY single country I've been lately (including some in Europe, Asia and South America)... But relatively (to it's time and the size of internet), yes - pets.com was probably successful at that too... :-)