The Additional Information section in the Self Maintenance MP alerts are still pointing to Kevin Holman’s technet blog. These links are no longer useful and need to be updated to his new platform. For example, the alert Stale State Change Events detected in OpsMgr database has an Additional Information link of http://blogs.technet.com/b/kevinholman/archive/2009/12/21/tuning-tip-do-you-have-monitors-constantly-flip-flopping.aspx. This should be updated to https://kevinholman.com/2009/12/21/tuning-tip-do-you-have-monitors-constantly-flip-flopping/.
Thanks for pointing this out. I’ve added this to our engineering team’s backlog. I’ll update you if we have any news!