What's very important from my point of view is that there is one web … Anyone that tries to chop it into two will find that their piece looks very boring.
Tim Berners-LeeThe more you enter, the more you become locked in. Your social-networking site becomes a central platform - a closed silo of content, and one that does not give you full control over your information in it. The more this kind of architecture gains widespread use, the more the Web becomes fragmented, and the less we enjoy a single, universal information space.
Tim Berners-Lee