(Reuters) - Windstream Holdings Inc said on Monday it would buy fellow U.S. telecommunications company EarthLink Holdings Corp in a deal valued at about $1.1 billion, including debt, in a bid to cut costs and better compete with rivals.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=9rmnVIMRDlY:v-oHXt-mN2I:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=9rmnVIMRDlY:v-oHXt-mN2I:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=9rmnVIMRDlY:v-oHXt-mN2I:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=9rmnVIMRDlY:v-oHXt-mN2I:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=9rmnVIMRDlY:v-oHXt-mN2I:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/9rmnVIMRDlY" height="1" width="1" alt="" />