Evans data new research mentions Firebird:

http://www.evansdata.com/EDC_WEB_2006_2_Start.html
<http://webmail.arsoft.pt/horde/util/go.php?url=http%3A%2F%2Fwww.evansdata.com%2FEDC_WEB_2006_2_Start.html&Horde=6eb454ed0e528354bcba3c5dbf96df1f>

It's a very long questionary, that you will take some minutes to fill in.
But if you have these minutes to spare, please do it: these reports
really help promoting Firebird.

Artur