Here is a short list of the most popoular places we find knowledge.
Citrix Support
Event ID
DABCC
Microsoft Technet
Symantec
Microsoft Support
Petri
Brian Madden
MSDN
Cisco
Unfortunately we have found no crystal ball and rely on experience and diligence to cull these to help resolve our partners concerns.
When all else fails we rely on our ability to translate issues into an effective web query.