A real-time chat and conference contact information manager which, during a real-time online chat, online meeting, or online collaboration session between multiple participants, receives identification items associated with addition of a new participant; stores the received identification data item in a contact record in a local collaboration client contact list; triggered by the storing, extracts a search key value for each data item of the contact record, including at least an email address value associated with the new participant; uses the search key value to search a trusted administered contact information store for corresponding data items; and modifies the contact record to include the corresponding data items from said trusted administered contact information data store.