I think we have the tendency to over-complicate things.   

Sometimes 'simple' is best...  Simple things done over and over again.... produce results!

The Invite System is a great tool, GDI has provided us with.   Just put in the names of your friends, or
someone you exchange emails with and the Invite System works for you...

I'm been a member of GDI for 2 and a half years and still use the 'Invite System'

Happy New Year,

John Pratt