Facebook now allows all their users to view a detailed invite history.
1) Want to know what Facebook users have joined because of you? Go here.
2) Would you like to see a list of everyone that you have invited to join Facebook but who haven’t accepted your invitation yet? Go here.
3) If you’re interested to know who in your circle of friends has brought the highest number of people to Facebook so far, you can go to facebook.com/impact.
With the Facebook Invites history page you can send email reminders to people who have yet to join the website just in case your previously sent invites somehow went unnoticed or if they happened to land in their junk folder.
This is definitely a useful tool as part of your social media marketing campaign if you’re a business sending out invites to existing/potential clients.