| 摘要 |
A system for sending invitations potential subscribers of a service provider includes a registration engine configured to complete a registration process with a registering user. Furthermore, the registration engine is further configured during the registration process to receive from the registering user: a) an e-mail address of the registering user; b) access information for that e-mail address; c) permission to access the e-mail address; and d) an instruction to send an invitation to join the service provider to at least some of a plurality of addresses within an address book of the registering user. The system also includes an authorization engine configured to extract the plurality of addresses from the address book; and an invitation engine configured to send a respective invitation to at least one of the extracted plurality of addresses.
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