Official Page

• EA Support
• AnswerHQ
• Origin
• Patches

Custom Content/Mods

• Around the Sims
• Bienchen
• LittleMsSam
• MC Command Center
• Mod The Sims
• Simvasion
• TwistedMexi
• The Sims Resource

Forums (English)

• Mod The Sims

Tutorials & Helpful Resources

• Everything Mac: Bluebellflora.com

Tools

• Sims 4 Studio
• Mod Constructor by Zerbu
• TSR Workshop by  TheSimsResource
• S4pe by Kuree

My other blogs

• Crinrict’s Sims 3 Help Blog
• Crinrict’s Game World
• Unravel Unraveled

Helpful Non-Sim Programs

• 7-zip (englisch)
• CCleaner
• WinRar