Discords:
Marvel United Community Discord
Data:
Card count spreadsheet (Credit: Paul M.)
Spreadsheet of figure count and product location (Credit: TichShowers)
Marvel United information (Credit: Zanwot)
Marvel United Character Picker (Credit: Spiffworld)
Marvel United Play Logging [Results] (Credit: Max Maloney)
Character Biography Guide (Credit: AllMadHere)
Marvel United Compendium (Bios)
Marvel United fan-made stuff hub
Breakdown of United mini heights/sizes
Apps:
Villain and Hero Randomizer (Credit: imaginair)
Random United Android Randomizer App
Campaigns:
Marvel United Ultimate Campaign Map (Credit: Dom2d)
Marvel/X-Men crossover campaign Map (Credit: Dom2d)
Marvel United: Breakout Campaign (Credit: bryceandcallie)
New Player Guides:
What is exclusive to each Marvel United Kickstarter?
Official CMON How to Play video
Official CMON How to Play Infinity Gauntlet video
Dale the Casual Gamer Marvel United walkthrough
Crabbok Marvel United walkthrough
Rahdo runs through Marvel United
Marvel United setup by Rolling Solo
How to play Marvel United in Eight Minutes by Tim Chuon
Villain Guides (Fear Lord):
Red Skull | Ultron | Taskmaster | Killmonger | Zemo | Loki
Custom Content:
Marvel United Ultimate Campaign map (Credit: Dom2D]
YouTube/Twitch creators:
Dice Tower Marvel United Rankings
Retail listings for Kickstarter items:
Social Media Communities:
Marvel United Reddit Community
Marvel United Facebook Community
Marvel United Board Game Geek Community
Board Game Spotlight Facebook Community (general gaming but also talks United)
Hall of United 