DWHlabs portal is exclusively designed for Data warhouse developers. Most of the content relates to data warehousing and ETL products with main emphasis on Informatica. The site provides a good Informatica ETL tutorial for beginners which covers such topics as installation, configuration, architecture overview and introduces the following Informatica components: Repository Admin Console, Repository Manager, Designer, Workflow Manager, Workflow Monitor.
The DWH labs site also provides some information on Reporting tools (Business Objects) and general database information on such engines as DB2 and Oracle.