The current main article at
http://en.citizendium.org/wiki/Internet is only a "lemma" article created by Howard. He has suggested (just above) that the chronological history section be split off as a separate article ... and the rest be retained as the subgroup main article and improved upon. That sounds like a good suggestion to me.
Why not go ahead and create the Metadata template for that article (which it does not have right now)? Then the subpages template on the article's edit page should go into effect (I think) and create the green subpages banner with tabs for the cluster sections (Talk, Related Articles, Bibliography, External Links).
As something for future consideration, it might be better to change the article name from "The development of the Internet" to simply "Development of the Internet".
Milt Beychok
Slight correction -- it isn't a lemma; it just looks like that because some things got scrambled in an attempted move. Nevertheless, the first four or so paragraphs are the core of the article, and there indeed should be a good deal of linking to subarticles, linking with clear transitional language. Since I was around for a fair number of the early stages of creation of the internet, I want the key ideas that drove them to be in the transition. There may well be a subarticle on architecture, although that's more controversial; I don't think Dan and myself are completely in agreement on the architectural model.
It has long been my theory that each new generation, for time immemorial,believes it invented sex. For the last three or so generations, each generation seems to believe it invented computers and networks. I don't want to lose the experience of the actual creation (Internet, not sex), as it's recent enough to give a lot of perspective. Indeed, there's a lot of international tension over things that were not intentional but had to do with early funding -- groups like ICANN are a struggle to make a truly world framework.