Well i know many of u can know them all, but still some1 can find smth usefull there.
1. Augmentations : http://l2under.com/data/augmentation/
2. HP bonuses from OE armors: http://www.pirateninjas.net/articles/lineage-2/hp-bonus-overenchanted-armor/
3. Enchant rates for weapons/armors at shrine. It's link to this forum topic, but trust me, i've met many ppl who had no idea about it: https://forum.l2shrine.com/topic/33-enchant-rate-for-weapons-and-armor/
4.List of all clan skills & Squads with price/lvl/bonuses etc. : https://l2under.com/data/clan-skill/
5.List of all Masterwork