You have several commercial products making it possible to download webpackages of online web content in order to later use it offline, but this could also be done quite easily by using data url and free generating solutions like for instance the URI kitchen Here is this blog in a offline data url version.
Here you will find great collected resources to the "concept" Web 2.0 by Jessica Merritt. The links are categorized and could be "easily" browsed through.
"With Semapedia you can hyperlink your physical world with knowledge that matters. To do this you create small Semapedia Tags consisting of a cell-phone readable 2D Barcode that will link others to the content you provide. Or put simply: Mark things like buildings, books, airplanes, cars or whatever with small Semapedia Tags that let others be a entry-point for more information."[taken from semapedia.org]
