大的社会网络，把许多网站业务的任何人都可以创建一个组，说，上facebook，它比较容易建立和支持整个网站。用这些代码可以建立一个简单而全面的SNS网站！

Big social networks put plenty of websites out of business - anyone can create a group, say, on Facebook, and it's much easier than to build and support whole website.
Now we want to get web-masters back into the game, arming them with the same functionality major social networks have.