Persistent Ubiquitous Content
Marc Canter considers this a key condition for building an Open Mesh
"If you step back and think about content as infrastructure you can take a different attitude towards stock photos, soundtracks and beats, 3D models, 3D city models and all sorts of reusable digital content assets. You can bake historical references, sports statistics, background on diseases and weather trends into your blog posts and software. You can make collaborative hypermedia a dream come true.
A mesh which has ubiquitous persistent content in it - as a key construct - is a mesh that can provide health information, small business knowledge and courseware for all ages - free and built into word processors, email, spreadsheets or browsers.
A mesh which has ubiquitous persistent content in it - can enable entirely new kinds of record labels, movie studios and book publishers - which have a fighting chance of surviving. By lowering distribution, development and www costs - we can enable the Long Tail to at least cover their costs and pay the rent and feed themselves.
A mesh which has ubiquitous persistent content in it can seamlessly tie into other domains like the ‘Live Web‘ or ‘Tools‘- and seamlessly ‘mesh’ with other constructs like micro-content, aggregators or collections." (http://blog.broadbandmechanics.com/2008/04/how-to-build-the-mesh-2-persistent-ubiquitous-content)
Detailed review of the requirements at http://blog.broadbandmechanics.com/2008/04/how-to-build-the-mesh-2-persistent-ubiquitous-content