The purpose of this site is to educate people on the evolution of personal computers and IT. It starts off by giving a little background information from the evolution of using mainframe computers to to 'personal machines' used for communication. It takes you through different sections of IT history and tells you what section you are in with this sidebar:
Each section tells you information relavent to the name of the section you are in. Significant people, significant inventions and events that affect the course of how our ICT is made up today.
The problem that I find with some of the sections is that it will give you a lot of jargon without fully (or not at all) explaining what it is.
The site itself is clear and seperates/intergrates navigation with the topic you are looking for well so anyone not familiar with the resourse will know where they are at with in the site.