EghtesadOnline: Twitter Inc posted the slowest revenue growth since it went public four years ago, sending shares down more than 10 percent on Thursday on fears that rivals Snapchat and Facebook Inc were winning the war for advertising.

EghtesadOnline: Twitter Inc reported its slowest revenue growth since going public in 2013 and set a disappointing forecast, fanning concerns that faster growing social media services will make it a niche product.