Community Builder Mutual Friend is a plugin that is used to find out the mutual friend among two users.
This extension Simply shows the Mutual Friend When a User visit another users Profile.
This plugin displays mutual friends of the logged in user & the user whose profile the user is looking at on the Profile page. This feature is similar to the Mutual Friends feature at orkut.com & facebook.com.
This plugin is used in conjunction with the Community Builder extension from Joomlapolis.com
This feature works like Mutual Friends feature at linkedin.com & facebook.com.