I know goggle is trying to break into the social aspect but are not doing too good of a job.
On the plus one. It is kind of like the share button on the goggle plus pages but you do not have to share.
I am thinking it also acts sort of like a improved ranking among various social circles.
I am not a huge fan of BBB but they are in effect a type of directory with a citation. As noted on the page I am not an accreditation business. Meaning I did not pay for the ranking which they are now so famous. It seems google is not a huge fan either placing in second page well below some other citations. However, I will take it