Omnipotent

The Etisalat Tower

Emirates Telecommunications Corporation, branded trade name
Etisalat (Arabic: اتصالات‎ ittiṣālāt, literally "communications")

Human Rights Watch (HRW) reports on internet censorship in the UAE

2010 HRW report on UAE (released 26 January 2011) noted that websites that were blocked in 2010 included www.localnewsuae.com, www.uaehewar.net (UAE Hewar) with its discussion forums (topics include freedom of expression and politics) along with its Facebook and Twitter pages.

"The UAE should take a long, hard look at what happens to governments that suppress the rights of its citizens to speak out or that think they can control the information people share. Tunisians are not the only ones in the Arab world who will insist that no government has the right to trample their rights." - strong comments from Sarah Leah Whitson, Middle East director at Human Rights Watch (HRW) in a 26 January 2011 press release.
As it happened, Tunisia was not the only Middle East country whose citizens had something to say - Algeria, Bahrain, Egypt, Libya, Oman, Saudi Arabia, Yemen all had varying degrees of unrest in February 2011 with Libya in particular descending into what looked like civil war to many observers.

_{Source: Internet censorship in Dubai and UAE}

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Flickr (www.flickr.com) - blocked since 2005, although many other image hosting websites are not blocked.
Update 27 September 2010: Flikr available on both Du and Etisalat internet connections after the TRA said it could be unblocked, although Flicker Groups are still blocked (but that might change also).

www.localnewsuae.com - blocked in November 2010? Unclear why. Presumably commentary or blog posts that went over the tolerance line of criticism of the UAE.

www.mafiwasta.com - a website about labourers and workers in the UAE, and the harsh treatment meted out to them.
Blocking seems to be off and on, and like uaeprison.com, it's not clear what the point is of blocking it in the UAE when those who reside outside the UAE are not affected by the censorship.

Middlesex University (UK) - website blocked in the late 1990s due to the inclusion of the word "sex".
No longer blocked, and there's even a Middlesex Dubai branch now.

_{Source: Internet censorship in Dubai and UAE}

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DeviantART too was blocked by TRA a couple of years ago; the ban has since been lifted.
However, the fav.me short url, and sta.sh are still blocked.

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@ The Telecommunications Regulatory Authority - U.A.E. :
Stop blocking our internet, dammit!!!


_{Dubai - U.A.E.}