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A plan to dramatically expand the number of possible Web addresses — by adding more than 1,000 new domains such as “.buy,” “.casino” and “.gay” — could cause widespread disruption to Internet operations, say some industry officials.ICANN's Domain Expansion Criticised, and May Cause "Collisions" [washingtonpost.com]
Particularly troubling is the possibility of widespread “name collisions” that could happen when domains used by internal corporate computer systems — such as “.corp” or “.home” — get assigned to the Web more broadly. This could cause systems to fail, blocking access to e-mail or other internal programs, and also could open sensitive information to theft, some experts say.
“This could affect a million enterprises,” said Danny McPherson, chief security officer for Verisign, which is based in Reston and manages several of the most popular existing domains. “It could absolutely break things.”
Among those posing risk could be domains such as “.med” or “.center” that might be critical to the functioning of medical systems or emergency-response networks.
I can find countless domains that are exact match even after the EMD updatesNot everyone jumps at the wibblings of Google and its cargo-cult SEO followers. Domain patterns generally shift on a yearly timescale and some domains will have been registered for more than one year. I've stated in the Google SEO forum here that I don't have a high opinion of those responsible for the Penguin update and consider that they have a very poor understanding of the web in general. Once Google shifted from its link based algorithmic model (which was gamed and exploited) towards feebleminded solutions that, rather than fixing the initial problems, only dealt with some of their effects, it was in long-term trouble when it came to SERPs quality. Its current approach is like trying to patch all the holes in a very large string bag with only a view of a few holes at a time. Hitting EMDs was a classic example of the limitations of Google's solutions when it comes to the problem of maintaining a clean index. Apart from the query value of an EMD, there can also be a type-in value. And Google is not the only search engine so what may not work in Google could work in Bing, Yahoo or Yandex.