Companies that are integrating their existing websites/applications with Facebook are currently experiencing massive growth.  Last week I posted how MySpace, Yahoo, and Pinterest are all using Facebook’s new open graph Timeline actions to leverage their traffic to the 800+ million users.  Recently I was looking over some application growth data and noticed Microsoft’s Bing is another website that is aggressively using Facebook’s platform to connect users to search results.  They now allow users to connect through Facebook and personalize their searches accordingly.  I’m connected, look what a recent query of IMGrind returns:

Notice how the search results now show the articles on IMGrind.com that my friends like?  Freaking excellent idea!  Wouldn’t you rather read a result that has already been enjoyed by your social circle?  Chances are this material is relevant, informative, and full of quality.  Overall this is personalizes the search results and helps organize the Internet’s content.  Here’s what Bing says about the integration on their website:

Why go it alone?
Bing is the only search engine which shows your friends’ Facebook likes.

Find your friends.
Looking for the John Smith you met at the party? Search on Bing so you’re confident the John Smith you’ve found is the John Smith you’re looking for.

See who lives where you’re going.
Flying to Miami? See which of your friends on Facebook call it home.

Ask friends for advice while you shop.
Bing lets you build, share and discuss shopping lists. Retail therapy will never be the same again.

Stay connected with friends.
Get quick access to your news feed, photos, and friends on Facebook straight from the Bing Bar. Download the Bing Bar and earn rewards as you search.

All of this is nice, but how much is it impacting Bing on a monthly active user basis.  Peep this:

Adding 200K+ users a month for any application is certainly a success.  As Facebook continues to improve and add to their platform users will get more comfortable with the features and the growth is likely to continue.  Google is still trying to stubbornly leverage their Google + social network to incorporate their search results – but is it nearly as powerful as integrating with Facebook?  I personally don’t think so.  First MySpace, Yahoo, and Pinterest, now Bing.  What other companies are going to continue to adapt, develop, and progress with this evolving social media phenomenon?