OSRS Giant Seaweed Calculator - The OldSchool RuneScape Portal!
Protean items - The RuneScape Wiki
The BiS perk setups from Wiki (with slight changes), put together in an easier-to-read manner by the GoG staff. Any suggestions are welcome! : r/ runescape
Quest Calculator? : r/runescape
Challenge System (Daily Challenges) - RuneScape Guide - RuneHQ