IBM DB2

Bonnie Baker's Home Page
Computers, Software, Databases, IBM DB2 - Bonnie Baker Corporation. Consulting and training for DB2, including the popular Things I Wish They Had Told Me series.
http://www.bonniebaker.com
IDUG: International DB2 Users
The International DB2 Users Group (IDUG) is an independent, not-for-profit, user-run organization whose mission is to support and strengthen the information services community by providing the highest quality education and services designed to promote the effective utilization of the DB2 family of products
https://www.idug.org/
CDB Software, Inc.
CDB Software provides industry leading data management solutions for DB2 on z/OS. Our Intelligent Data Management Suite provides our customers the fastest, most efficient processing techniques that will leverage their deep DB2 enterprise investments both today and into the future.
https://www.cdbsoftware.com/
IBM Redbooks - Home Page
IBM Redbooks are developed and published by IBM's International Technical Support Organization, the ITSO. We develop and deliver skills, technical know-how, and materials to technical professionals of IBM, Business Partners and clients.
https://www.redbooks.ibm.com/