xF2 Add-on [OzzModz] User Registration Referrer Log
Store referrer information of your new users
xF2 Add-on Report Improvements by Xon
A Collection of improvements to XF's reporting system
XF2 Style Exclusive Dark
Exclusive Dark is a professional, flexible, fully-responsive forum theme for XenForo 2.1.x with.
xF2 Add-on AndyB Similar threads
Shows a list of similar threads when a user is creating or viewing a thread.
xF2 Add-on AndyB Calendar
A fully integrated Calendar system based on thread information.

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