I've posted before on Web 3.0 and evolution of the internet before, but after reading a great article on the matter I decided to give another post.
Most resources say that the next phase of the web will be the, semantic web. That the web will learn as you browse (kinda like TiVo would) and offer a more customized browsing experience. For example, if you wanted grab a bite to eat and catch a movie, you can in "theory" do it all in one search using meta data known as ontologies. This is a system which is based on tagging and take a lot of work. However, it's this data that a computer can use to determine relationships between one and another.
Eyeplorer is a search engine which uses a Web 3.0 engine. Give it a try by clicking here.
I highly recommend checking out this article for a fascinating read.
I'd love to hear your thoughts on where you think the web is going!!!