According to this article from a major Turkish newspaper, related authority in charge (BTK) revised and lifted the Tinyurl.com ban today! Ban was in effect since the 1st of March, so it's probably lifted due to recent press coverage.
Engelliweb includes a catalog of blocked websites in Turkey.
You can check related pages for Tinyurl and Pastebin to confirm the bans.
Linked article was from the February, when BTK databases were leaked to Pastebin. So it doesn't cover the recent events.
Slashdot Mirror
According to this article from a major Turkish newspaper, related authority in charge (BTK) revised and lifted the Tinyurl.com ban today! Ban was in effect since the 1st of March, so it's probably lifted due to recent press coverage. Engelliweb includes a catalog of blocked websites in Turkey. You can check related pages for Tinyurl and Pastebin to confirm the bans. Linked article was from the February, when BTK databases were leaked to Pastebin. So it doesn't cover the recent events.