Google Apps late last year signed a deal with General Motors Co. to provide email and online-collaboration software to more than 100,000 employees, but the deal later fell apart, said people familiar with the matter. In recent years, Google has pushed ...<p><a href="http://online.wsj.com/article/SB10001424127887323316804578163531826571350.html?mod=googlenews_wsj">Keep reading...</a></p>