Travel 2.0, Youth 3.0? Any idea?

I have some understanding of what 'Web 2.0' refers to. Even though there is little revolutionary development from so called 'Web 1.0', the term 'Web 2.0' came into existence and has been widely used by many people to refer to the web we are using today. I have no problem with it since everybody has some knowledge about what 'Web 2.0' means. But, it seems some people have become addicted to conjuring up new concepts nowadays. In the last a few days, I came across terms like 'China Travel 2.0' and 'Youth 3.0' on the internet with absolutely no clue what they refer to. These so called 'new concepts' left me bewildered. How can 'travel' be 2.0ed, and 'Youth' 3.0ed? And, how did the age of 'Youth 2.0' circumvent us without being noticed? Weird, weird, very weird!

Anyone knows what 'Youth 3.0' is?

No idea? It doesn't matter. I've come up with a new concept 'Sex 2.0'. I AM SMART!