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- User
- Authorization Manager
- Service Providers Hosts (some of which are also ConsumersRequesters)
- Consumers Requesters (some of which are also Service ProvidersHosts)
Today, many Web 2.0 services are beginning to offer users features that depend on connections with other third-party services, using OAuth to forge the connection. A classic example is sharing your whereabouts between services. Since location information can be privacy-sensitive, and since people can end up "chaining" services this way, it's especially important for a person to know and control where this information is flowing to.
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