<p>Microsoft is celebrating Valentine's Day with a broadside against Google, which it criticizes for reading your lovey emails in the name of commerce.</p><p>In a not-so-subtle missive, the video above shows a Google mailman delivering a letter, but scanning the contents for keywords for which it can target ads. In contrast, the Microsoft Outlook mailman merely drops off a letter without reading it.</p><p>For Microsoft, it's hardly a new charge a video from July 2011 argued the same. But Microsoft is stepping up the pressure with its Scroogled campaign, which takes on its rival on various fronts.</p><p>Yet the company has determined that there's something extra creepy about intercepting love letters for advertising purposes and is hoping to change a few minds.</p><p><a href="http://mashable.com/2013/02/14/microsoft-valentines-day-gmail/">Keep reading...</a></p><p>Read also:</p><p><a href="http://marketingland.com/microsoft-scroogled-campaign-against-gmail-33471">Microsoft&#039;s "Scroogled" Campaign Against Gmail Wins 0.002% Of Users</a> (Marketing Land)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dKpZz517KX3tYQMkH8xuoMIJYMHzM&ned=us">6 additional articles.</a></p>