Web 3.0 Semantic Web: Gary Flake demos Pivot, a new way to browse and arrange massive amounts of images and data online. Built on breakthrough Seadragon technology, it enables spectacular zooms in and out of web databases, and the discovery of patterns and links invisible in standard web browsing:
http://www.ted.com/talks/gary_flake_is_pivot_a_turning_point_for_web_exploration.html
More info on how to get your website ready for Web 3.0:
http://www.customerparadigm.com/index/503/RDFa-Tagging-Services.php