Just as most of us are getting our heads around what that vague moniker "Web 2.0" actually means, we're assailed with the inevitable arrival of "Web 3.0".  The argument about which interest group gets to claim they're creating Web 3.0 seems to be over, and for good or bad, it's the Semantic Web. 

Well at least that's clear.

If you're still scratching your head, Ad Week's guide for marketers and ad-men-and-women, might be just the thing to set you right.