I have over 10 years of experience with the wonderful Cognos products.
I'm certified for the following Cognos products:

Cognos 8
IBM Cognos 8 BI Administrator
IBM Cognos 8 BI Modeler
IBM Cognos 8 BI Technical Specialist
IBM Cognos 8 Planning Technical Specialist
IBM Cognos 8 Controller Technical Specialist
IBM Cognos 8 Capacity Planner

Reportnet
Cognos Reportnet Product Professional Meta data Modeling
Cognos Reportnet Administration Product Professional
Cognos Reportnet Product User
Cognos Reportnet Product Professional Advanced Authoring

Series 7
Upfront Series 7 Product Professional
PowerPlay Web Series 7 Product User
PowerPlay Web Series 7 Product Professional
PowerPlay Series 7 Product User
PowerPlay Series 7 Product Professional
Impromptu Web Reports Series 7 Product User
Impromptu Web Reports Product Professional
Impromptu Series 7 Product User
Impromptu Product Professional
Access Manager Product Professional
Cognos Metrics Manager Product Professional