Please look to the CD section for Classic Diablo tips

Diablo 2 Lord of Destruction:

Throwology - An indepth look at Double Throw
-by KingOfPain

WWology - The art of WW and introduction to the Dance of Death
-by KingOfPain

Drow- A Battle Report of a drow mage's trip through normal and nightmare (to be continued!), and a look at how drow use stealth and shadow to their advantage.

Classic Diablo 2

The Charis Report - covers the first Baron in each of the five classes, Elemental Javelinist, Toxic Necromancer, Pal Glutton-for-Punishment, Sorceress (Mana Templar) and Barbarian BodyBuilder

The Charis Report #2 - This report chronicles the following characters in brief: - Warcry Bar (ChariSonar) - Uberesist Lightning Sorceress (ChariSchaeffer) - Horadric Knight (Paladin, focus on Zeal, Fanat and Unique items) (KhaIim) - Frenetic Forking Fendazon (CharisValkyrie)
- by Charis

Necromancer Skills - A quick startup guide written for the necro newbie, KoP. Nice format!
- by LemmingofGlory

Mageazon Updates - Lok's reports on playing a Mageazon from beginning to baroness.
- by Lok

Solo Iron Barb - KoPhanTom LIVES! Take a look at the on going (hopefully) report and glimpse what is in store to play a solo Ironman Barb.
- by KingOfPain

Scoop on Poison damage - Still confused?
- by Charis