Informix Zone site (very cool)

Online manual of informix.

Download all manuals (free of charge) :

IDS Support page:

IDS Support page - Technotes articles - very very useful!

IBM Developer Works - Articles & Tutorials (select product Informix) - very very useful!

Redbooks - Objectives manuals...

IIUG - Internation Informix User Group

USENET News - comp.database.Informix ( the best! )

IBM Blogs

IBM Webcasts

IBM Developer Works - Informix

IBM - Lifecycle dates, support products