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
Black Twitter each other by throwing insults back and forth ("Yo momma so bowlegged, she look like a bite out of a donut," "Yo momma sent her picture to the lonely hearts club, but they sent it back and said, 'We ain't that lonely!). According to Thurston, the brevity of tweets and the instant feedback mean Twitter fits well into the African tradition of call and response. Having been the topic of a 2012 SXSW Interactive panel led by Kimberly Ellis, Black Twitter came to wider public attention in July 2013, when it was credited with having stopped a book deal between