> The cvalde site is a bit dated. This is a 'who-uses-Interbase-site'.
> Maybe some businesses have switched to Firebird.

The following have:
Distributel Communications Limited - Canada
T.I.P. Group S.A. - France (shouldn't that be Belgium?)
USC School of Medicine - USA
Software Associates - UK
DataTrak Business Solutions - USA
Voice Print International - USA
Architrave Consultants Ltd. - Canada
Canadian Seed Growers Association
Mex-Logistik GmbH - Germany

Can't comment on the others, but I am sure others can :-)

Regards
Paul