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 usage general introduction to Twitter. In the United States a number of environment agencies and NGOs are using Twitter. At the local level, police and fire departments are beginning to use Twitter to keep the public informed of incidents. Some of these departments, such as the Los Angeles Fire Department, issue up to 10 tweets per day. In October 2008, a draft U.S. Army intelligence report identified Twitter as a "potential terrorist tool". The report said it "is already used by some members to post and/or support extremist ideologies and perspectives." David Saranga of the Israeli Ministry of Foreign Affairs announced