Twitter #Thatsafrican and #thingsdarkiessay hashtags after users complained that they found the hashtags offensive. There are allegations that Twitter removed #NaMOinHyd from the trending list and added an Indian National Congress-sponsored hashtag. There are numerous tools for adding content, monitoring content and conversations including Twitter's own TweetDeck, Salesforce.com, HootSuite, and Twitterfeed.com. , fewer than half of tweets posted were posted using the web user interface with most users using third-party applications (based on an analysis of 500 million tweets by Sysomos). In June 2009, after being criticized by Kanye West and sued by Tony La Russa over unauthorized accounts run by
Twitter diplomacy Foreign Affairs over the 2014 Crimean crisis devolved into dueling tweets, with both ministries using the hashtag #UnitedforUkraine to convey opposite points of view. Tweeting to a global audience also poses challenges to leaders and diplomats. In early 2014, Iranian President Hassan Rouhani decided to delete a controversial tweet that received much media attention, though it was likely intended for his domestic audience. Twiplomacy's 2013 study provided new insight into the use of Twitter by governments. Twitter registration by region includes: Former US President Barack Obama is credited as being the first head of state to establish a Twitter account,