What actions can I perform on contacts?

CiviCRM has a powerful tool to administer individual contacts. If you want to alter the "properties" of a user or group of users, you will first have to 'search' for them. Once they are listed, select them by ticking the check boxes and from the dropdown box select an action.

• Add Contacts to a Group
• Remove Contacts from a Group
• Tag Contacts (assign tags)
• Export Contacts
• Delete Contacts
• Add Contacts to Household
• Add Contacts to Organization
• Record Activity for Contacts
• Map Contacts
• New Smart Group

For more information, see Taking Action on Search Results .

TECHNICAL:
The contacts are stored in the 'civicrm_contacts' table. The 'contacts' in civiCRM are related to Drupal 'users' by the 'civicrm_uf_match' table. Drupal stores it's user information in the 'users' table.