<a href="http://sethgodin.typepad.com/seths_blog/2009/03/the-benefits-of-history.html">Learning from history</a>

From Seth Godin:

Every once in a while, a new technology is introduced online and it becomes the must-have, must-be-talked-about breakthrough. If you’ve got one of those, it would be useful to look at what made the last five work.