Slowing momentum at Twitter has slammed its share price and revived investors’ concerns about its value and ability to grow its subscriber base. <br /><br />The microblogging service said its 255 million monthly users appear to be checking tweets less frequently than they did a year ago.<br /><br />Along with the lackluster usage, Twitter’s first-quarter results revealed fewer people are signing up. <br /><br />Sales more than doubled to $250 million (180 million euros), which was better than expected, but its net loss in absolute terms was nearly five times bigger than this time last year at $130 million (94 million euros).
