I find the Business Analytics Supportlink a very useful way to keep up to date with things.
Check out the latest version here:
https://www-304.ibm.com/connections/blogs/basupportlink/?lang=en_us
It also includes a link to download the very useful looking "System Overview Diagnostic tool" and in fact you can find a bunch of other useul tools at the following url:
https://www-304.ibm.com/connections/blogs/basupportlink/tags/diagnostic_tools?lang=en_us
