COPENHAGEN (Reuters) - Facebook is to build its third data center outside the United States in Denmark to store and manage the social media giant's growing data, such as photos and videos, a Danish news website reported.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=POWP5c6d8HE:hWNWxqgALh8: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=POWP5c6d8HE:hWNWxqgALh8:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=POWP5c6d8HE:hWNWxqgALh8:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=POWP5c6d8HE:hWNWxqgALh8:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=POWP5c6d8HE:hWNWxqgALh8:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/POWP5c6d8HE" height="1" width="1" alt="" />