Explanation of Web 2.0
There are many definitions including the O’Reilly one, and much debate on whether the phrase “web 2.0″ actually has meaning, or is nothing but useless hype.
But here’s the best definition I’ve seen in a while, from the brilliant Jessica Hagy:
In-company language training in 1915
The Ford Motor Company provided language instruction to immigrant workers 90+ years ago. A major objective was worker safety at the factory…the same goal of a project I did for an energy company several years ago. Evidently the teachers used a direct method similar to Berlitz.
From the .ppt A Brief History of EFL Instruction on the CAELA resource page (4th bullet down).
Hat tip to Larry Ferlazzo.



