While that is the De facto rule in career centers, there is a rule that usurps it, which is if it really does distinguish you from the average applicant, use it.
You could expand the question to say why do abc, disney, and espn all include go.com in their url? Obviously they all share the same ownership. Although I think there would be better ways to promote cross brand pollination.
There's an interesting history there. I'm not sure why they haven't changed to just use their own domains, given how much of a failure the go.com portal concept was.
The Killing Buddhas[1] rule has lead me to dig up information.
Initial investigation:
Bolivia seem to be a country that got into a lot of debt. Following the advice of the World Banks, they privatized everything in rapid order.
Wikipedia article on the privatization of Bolvia states that the public utility is having water shortage, high tariff, accounting errors, and such. The citation was from a Spanish source, but the link was expired. http://en.wikipedia.org/wiki/Water_privatization_in_Bolivia#...
I have to say that the Water War is a lot more complicated than it look. First, there is the issue of privatization and how it is conducted. Second, we need to know the economic consequences of privatization. The possible bias of the World Banks that argued for privatization of water will have to be investigated, and so on.
Note this is only a cursory look into the issue of water privatization. It is also unlikely that I will go much into the issue as water use is not that interesting to me.
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1. Killing Buddhas is taken from the Zen maxim If you meet the Buddha on the road, kill him. ESR generalize it as a rationalist maxim that said that our strongest belief should not be immune to and should be subjected to attempted refutation. This help avoided fixed beliefs that are totally wrong and help make sure that we do not mistake beliefs for reality.
Be careful about calling any part of web design cutting-edge. It may change quickly what is in fashion on the web, don't mistake that for being technically challenging.
Apple doesn't license PDF from Adobe even though it is part of OS X's native graphics renderer.
“The Quartz renderer and the PDF interpreter that Apple ships with Mac OS X are built with Apple code, with no external licenses, by Apple employees. Adobe just publishes a specification for how it’s supposed to function. This gives Apple considerably more flexibility with regard to what Quartz and the PDF interpreter can be used for.”