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US. Patent Mar. 4, 2014 Sheet 2 of7 US 8,667,397 B2 /30 Group Name 32 / “Home List” . “W k L-St” or Buddy List I Screen Name/Address L09 Status “John Smith” “Jane Doe” “Simon Roe” “W “Out” “In” FIG . 2a 34 36 Permission List User Name “John Smith” “Jane Doe” “Simon Roe" \ Biock Status “none” “all” “ail except” Exclusion List “Bob Jones” “none except" 38 / Inclusion List FIG. 2b
