Use Ripplex to;
(A) Synchronize address book on multiple MACs / PCs automatically
(B) Exchange information with linked friends without sharing it with any third party
(C) Go directly to many internet applications and interface with others through convenient import/export.

Main features of Ripplex Address Book are:
(1) All your contact and personal data stays primarily on your computers
(2) No third party (not even Ripplex Inc.) has access to your data
(3) Fine control of information disclosure - both to whom and what
(4) Disclosed information automatically sent to linked friends via encrypted messages
(5) Automatic synchronization between all your computers (Mac & PC both supported)
(6) Group feature to share some information amongst group members
(7) Category feature to organize your contacts
(8) Icon view to see all information of friends concisely & to launch applications
(9) Auto-search to find your friends without disclosing any of your information
(10) Incremental search through all profile items
(11) Powerful and flexible Import/Export
(12) Merge capability for multiple profiles into one
(13) Proxy connection available
(14) Very good User Guide