# About Profiles

IDOL Server automatically creates interest and expertise profiles for users in real time. You can configure the IDOL Community component to create up to four different profile types. By default, Community creates an interest and an expertise profile for each user.

You can create an interest profile by tracking the content that a user views and extracting a conceptual understanding of it. Community then uses this understanding to keep the user interest profile up to date. You can use interest profiles to target information at users, recommend content to users, alert users to the existence of content, and put users in touch with other users with similar interests.

You can create an expertise profile by tracking the content that a user creates and extracting a conceptual understanding of it. Community then uses this understanding to keep the expertise profile for that user current. You can use expertise profiles to trace users who are experts in particular subject areas.

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