Like the title states. List your PSN (or for the Microsoft fanboys, Xbox names) and list the games you currently play online if relevant.
PSN Names:
GTP_Miatamaniac9
Miatamaniac92
Games:
GT5
GT5P
Soul Calibur IV
Street Fighter 4
Guitar Hero World Tour
MW2
Xbox Live:
N/A
XBox Games:
N/A
Chris