Traditional Culture Encyclopedia - Photography and portraiture - What are the applications of web2.0?

What are the applications of web2.0?

Many, forums, blogs, Weibo and so on.

Now the products based on WEB2.0 are: Baidu Encyclopedia, Wikipedia, Douban, Yinyuetai, Renren.com, DianDiantong, Wallop, yahoo360, openbc, cyworld, 43things, flickr, cragslist, glob, Qiqi, friendster, linkedIn, UU Tong, Youyou, Tianji.com, Aimi.com, linkist, Sina DianDiantong, skype, Yiyou, Sina Mingbo, Tudou.com, Zhu Bajie Witkey.com, etc.