Twitter has found itself in the Federal Trade Commission’s cross hairs once again, this time over its treatment of companies that develop applications for the service. In March, Twitter settled with the FTC following an investigation of privacy violation allegations.

Business Insider reports neither Twitter nor the FTC would comment on the investigation, and speculates that the investigation has to do with the way Twitter has been stopping or swallowing up apps that are meant to enhance the service, acquiring Tweetie and TweetDeck while forcing UberTwitter to shut down for three days.

If you use Twitter, which apps do you find most effective?

Twitter Is Under Federal Investigation [Business Insider]

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