Facebook released its much-feared commenting solution, reports ReadWriteWeb. The idea made big news earlier this year, despite the fact that Facebook has already offered a commenting solution for more than a year, but today the company has announced the feature officially. So what’s new? There are a number of features for both publishers and users, although some of the most exciting features we’ve seen displayed on Facebook late last year don’t appear to be a part of the release. Is Facebook’s massive social graph enough to push it into the default slot for comments, where it already resides for things like social sharing and third-party login?