BRUSSELS (Reuters) - U.S. tech giants Google and Facebook are among multinationals spending more in Brussels as the European Commission eyes new business regulation after last week handing Apple a 13-billion-euro tax demand.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=5gYjYRjn3Kg:NlbLReneLKs: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=5gYjYRjn3Kg:NlbLReneLKs:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=5gYjYRjn3Kg:NlbLReneLKs:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=5gYjYRjn3Kg:NlbLReneLKs:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=5gYjYRjn3Kg:NlbLReneLKs:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/5gYjYRjn3Kg" height="1" width="1" alt="" />