From the Developers Blog
Facebook Integration for WordPressBy Matt Kelly - Today at 11:00am

Starting today WordPress publishers can easily integrate Facebook features, such as social publishing and mentions, through the new Facebook for WordPress plugin.

The plugin was built by Facebook engineers in collaboration with open source partners, and makes it simple for anyone to make their WordPress site more social – no coding required. The plugin will also work on mobile and support internationalization.

Here’s the link to the complete article:  https://developers.facebook.com/blog/post/2012/06/12/facebook-integration-for-wordpress/

For installing Facebook for WordPress:

https://developers.facebook.com/wordpress/

I’m in two minds about this as I was always of the belief that auto-publishing to your Facebook page via rss was not a very good idea.

@kristi-hines @amyhallbiz

I thought it was pretty cool myself! Since it is a facebook “product”, I’d like to think that as facebook makes changes, the app will be updated to stay current.

@adigaskell— I don’t know about the impact on algorithms, but since it is a facebook “product”, I wouldn’t think it would hurt the rankings.
Bottom line, since you can also mention friends, pages, etc, it appears to be a good tool to help distribute your content.

@warrenveach – I’ve installed on a client’s site and really liking.  Now to ‘teach’ my client how to utilize a few features.  Then to install on my own sites and get them working.

@aplusvaservices You’re using WordPress, that’s what happened. A clash between the two plugins would be the obvious answer, but with wp the obvious isn’t always right. A weakness is in your theme’s code may have been exposed and you might be surprised by how little it takes to throw things out of whack.

For example, just having a space or empty line after the closing ?> tag at the end of the php file will cause header errors. Mismatched <div> tags can cause some crazy errors as well.

Try going to the contact page and have a look at the source code to see what’s being generated when the new plugin’s activated. You might find a clue to what’s wrong.

I have seen lots of posts about errors with the plugin, I would hold off using it just yet until they get it sorted. Which shouldn’t be too far in the future.