clipped from: www.pcmag.com   

An Idiot's Guide to Web 3.0
What will Web 3.0 look like? Who knows? But here are a few possibilities.
The Semantic Web


The Semantic Web

The 3D Web

The Media-Centric Web
A Web where you can find media using other media—not just keywords.

The Pervasive Web
clipped from: www.pcmag.com   
What the traditional Web does for the text documents in our lives, the Semantic Web does for all our data and information.

So the technology of the Semantic Web is, in a sense, the technology of precise vocabularies.
clipped from: www.pcmag.com   
You won't search for media with keywords in the future-—you'll search for media with media. To find an image, you'll supply another image. To find a song, you'll supply another song.

you aren't really looking for photos of Apple's CEO. You're looking for filenames and captions that carry those keywords—"Steve" and "Jobs"—hoping the right photos are somewhere nearby.