<p>This is " bloomberg west." microsoft has a new competitor as it checks into taking a stake in foursquare.</p><p>American express is also trying to invest in the mobile check-in company.</p><p>What makes foursquare such a hot target?</p><p>Who are some of the other players that could be considering an investment?</p><p><a href="http://www.bloomberg.com/video/what-makes-foursquare-such-a-hot-target-M16TuSHERB6AsL7Vv4o_Cg.html">Keep reading...</a></p><p>Read also:</p><p><a href="http://marketingland.com/who-needs-foursquare-google-yahoo-or-microsoft-57680">Who Needs Foursquare More: Google, Yahoo Or Microsoft?</a> (Marketing Land)</p><p><a href="http://pandodaily.com/2013/08/30/microsoft-might-invest-in-foursquare-maybe-this-means-bing-maps-will-suck-a-little-less/">Microsoft might invest in Foursquare. Maybe this means Bing Maps will suck a ...</a> (PandoDaily (blog))</p><p><a href="http://www.slashgear.com/foursquare-investment-considered-by-microsoft-and-american-express-30295501/">Foursquare investment considered by Microsoft and American Express</a> (SlashGear)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dXUpezQP05bblRMRivNs_AVY28YYM&ned=us">22 additional articles.</a></p>