Microsoft has launched an ad campaign against Google

Microsoft is taking out full-page ads today in major newspapers, warning customers about new Google privacy policies and urging consumers to consider Microsoft products such as Hotmail and Bing.

Bloomberg reports that the ads explaining Google's changes in policy appear in Wednesday's New York Times, Wall Street Journal and USA Today. "If these changes rub you the wrong way, please consider using our ... products and services," Microsoft writes in its ad.

Microsoft posted a copy of the ad on its website.

A new search feature from Google has come under intense fire over privacy concerns. In announcing the changes to Google's privacy policy, Alma Whitten, Google's privacy chief, said in a blog post that Google will roll out the changes March 1:

What does this mean in practice? The main change is for users with Google Accounts. Our new Privacy Policy makes clear that, if you’re signed in, we may combine information you've provided from one service with information from other services. In short, we’ll treat you as a single user across all our products, which will mean a simpler, more intuitive Google experience.

The changes include a new policy to consolidate users' data across all Google services, including search.

The new product from the Mountain View-based company adds results from posts from users and people they follow in circles on Google's social networking site, Google+. The personalized results will appear alongside the regular results.