Part of the feature set of the Social Review Engine Plugin for Wordpress is it ability to create a lot of Viral Traffic from each and every Review submitted on your blog. That viral activity is created by the Social Connect features the plugin uses and the automatic social posting features which allow each Review Submission to be posted to your Facebook Fan Page of choice and your Twitter Account of choice. This in itself can create a lot of viral sharing activity for each review. In addition to this, if a Reviewer has Connected to your site via the Facebook Connect feature of the Plugin then their Review will also be automatically Posted to their Facebook Wall. This action can then be multiplied when additional visitors to your Reviews click on the "Agree" Thumbs up icon which also Connects to Facebook and Auto Posts information about the Review. All of this can be customized in the Review Engine Settings and on individual Review Posts and Pages, but the Social Posting Settings here must be filled in properly in order for them to work.
As described in the Tutorial for creating a Facebook App, a second APP is required in addition to the Facebook APP you created for use in the General Settings. Creation of the Twitter APP which is also required for these Settings was also gone over in the Create a Twitter APP Tutorial. Make sure you have gone through both of those Tutorials before completing this Step.
Fan Page Posting Settings
Note: It is IMPORTANT that you're creating a new Facebook App for the Fan Page posting. You CAN'T use the same App as you use for receiving the Facebook Reviews via Facebook Connect. The reason for that is, that you need to grant extended permissions to the applications which allows the plugin to post the received reviews on your Fan Page without the need of you being logged in to Facebook.