The broadband war is widening. Recently, AT&T (NYSE:T) announced plans to bring service to five new markets for a total of 212, CNET reports.

AT&T's expansion covers two cities in Texas (Jacksonville and Palestine), two in Missouri (Sedalia and Warrensburg), and Manhattan, Kansas. In the video below, Tim Beyers of Motley Fool Rule Breakers and Motley Fool Supernova discusses which companies gain from this move.

More coverage means more broadband for mobile devices, which, in turn, is good news for the companies dependent on serving data to us anytime, anywhere -- Facebook (NASDAQ:FB) and Google, notably. And what of AT&T stock? Even with this expansion the carrier badly trails its main rival, Verizon (NYSE:VZ), in terms of the number of markets served. Concentrate your research efforts on Facebook and Google instead.

Do you agree? Please watch the video to get Tim's full take, and then let us know whether you would buy, sell, or short AT&T stock at current prices.