This one is another good one from Newsgroup.
Janakiram has given a very brief yet clear information of what a Work, Open & History Document(s) is all about. Read it here: Work, Open and History.
Now that’s not all. Read Leslie’s article on the same. It’s enough for anyone to understand this completely. Completely, I mean it. Read it here: Moving from Work to Open to History.
Good ones to learn.