Have to import my friends from external sources (Yahoo, Gmail, Facebook and Twitter), to check if they're registered in my
If they are I can add them to my friend list. (see picture1 attached)
If not I will be able to email them inviting to join the application, checkbox list, selected (see picture 2 attached)
Design is not important. I'll customize it, just want the result displayed organized to make my work easier.
Need the code well commented because I might have to tweak if to fill my application needs.