Facebook Comments can be displayed in a few different formats, XFBML (Xtended FaceBook Markup Language) and HTML5. While the report references that Google is crawling comments embedded in an iframe, that specific functionality is not supported for Facebook comments.
We performed some tests and can confirm that many of the comments are in fact showing up for articles. Here’s a search for a comment on the Raven blog
that uses an XFBML implementation of Facebook Comments:
So look for Facebook Comments showing up in Google results. If you would like to give your comments the best chance to rank, go with the XFBML implementation as that type is what has been shown to rank.
Related Topics: Channel: SEO | Google: Social Search