contact managers for LINUX?

Mon May 29 11:41:14 EDT 1995

anybody know of a contact manager for LINUX?  I mean one of those address 
book applications with extra fields, usually advertised as being used by 
(gasp) sales people.

                       Rodney Thayer           ::    rodney at sabletech.com
                       Sable Technology Corp   ::         +1 617 332 7292
                       246 Walnut St           ::    Fax: +1 617 332 7970
                       Newton MA 02160 USA     ::    PGP:    request sig.
                              "Developers of communications software"