Pakistan 'sparks YouTube outage'

Pakistan's attempts to block access to YouTube has been blamed for an almost global blackout of the video website for more than an hour on Sunday. BBC News has learned that the outage was almost certainly connected to Pakistan Telecom and Asian internet service provider PCCW.
A leading net professional said the global outage was "probably a mistake".
Pakistan ordered internet service providers to block the site because of content deemed offensive to Islam.
The BBC News website's technology editor, Darren Waters, says that to block Pakistan's citizens from accessing YouTube it is believed Pakistan Telecom "hijacked" the web server address of the popular video site.

Turkey and Thailand have in the past also banned access to the site

http://news.bbc.co.uk/2/hi/technology/7262071.stm