COPENHAGEN (Reuters) - Facebook plans to build its third data center outside the United States in Odense, Denmark, the California-based tech company said at a joint press conference with Odense municipality on Thursday.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=oXddmmfHxq8:tBbm5jT5G6g: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=oXddmmfHxq8:tBbm5jT5G6g:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=oXddmmfHxq8:tBbm5jT5G6g:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=oXddmmfHxq8:tBbm5jT5G6g:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=oXddmmfHxq8:tBbm5jT5G6g:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/oXddmmfHxq8" height="1" width="1" alt="" />