Quick Links

General
 * GT:New Horizons Official Spreadsheet
 * Tips & Tricks - TheShadowofX & Threefold
 * FTB Wiki Recipes will be very different in GT:NH, but a good reference for blocks/machines.
 * Garden of Grind: GTNH Skyblock
 * Greginator - GT Tool Browser, Overclock Calculator, Recipe Conflict Checker and more.

Applied Energistics
 * Wiki

Bees
 * IC2 + Bees
 * Binnie Mods Wiki
 * Bee Production Math

EnderIO
 * Wiki

GregTech Fusion
 * Wiki

IC2 Crops
 * Beedril's Crop Tips
 * Crop Breeding Calculator (2.0.7)
 * Crop Growth Analyzer
 * Biome Spreadsheet

IC2 Nuclear Reactors
 * Wiki
 * Reactor Planner

Minesweeper
 * Solver
 * Patterns/Strategy

OpenComputers
 * Wiki

Railcraft
 * Boiler Calculator

Thaumcraft
 * Research Helper
 * Unlocking Aspects
 * Stone Age Guide
 * Wand Info
 * Sources of Essentia
 * A Thaumaturge's Guide to the Essentia Pipe System

Turbines
 * Large Turbine Calculator Rework (2.2.8.0)