These are in no specific order. But these are the top pure play Internet companies that are widely known to all. That almost everyone in the world knows. Compare that to the BILLIONS of sites trying to break thru the soil. Billions and FEW can do it. There are also tens of millions or more dead carcases littering the way.
So when you look to the future it will only get harder to break through. There will only be more folks competing for the same set of eye balls. The more folks depend on Google for traffic and life the more they will be squeezed and controlled and suffocated.
Groupon is now #70 and less meaningful than in prior times. Sites like Pinterest and Flickr are also making their mark. But of all the billions of websites, the following ten are the ones that are universally known and are the legs of the internet today. So far. For now.
Have a GREAT Day!