what is web 2.0? web 2.o is a upgraded version of web 1.o.web

what does web 2.0 consist of? 1.0 consisted of a few sites and they were only available to view.

how is this a benifit? this is better because, 2.0 is a lot more interactive and allows peopel view more than one thing at a time.

what is the affect of web2.0? this affects everyone because now web 2.0 allows anyone leave their points of views on certain products on a perticula website and it also can be viewed by many people all over the world and they can get quick and easy acess to it.