3++ is the new black: Back to Basics: Beyond what the Internet says lies the truth – fester talks about list optimization and experience.
House of Paincakes: How Important is the Army List? – GMort also talks about optimization and advice but with a different take than fester’s article.
The Back 40K: Tactica: Redundancy vs Utility – Spaguatyrine chats about an age old topic, list spam.
Imperius Dominatus: Discussion: Grey Knights are not a assault army – The article title is pretty revealing and Mercer gives a brief but to the point article on the matter.