1. 

   Official Sketch Developer Site

   Everything you need to start developing Sketch plugins: introduction, plugin bundles, sample scripts, debugging, and much more.
2. 

   iOS Dev Tools

   A list showcasing the greatest iOS development tools, including websites, desktop and mobile apps, and back-end services. Compiled by @AdamSwinden.
3. 

   Sketch Talk

   Sketch Talk is a community for Sketch users. Post questions, know-how, links, tips & best practices about @sketchapp.
4. 

   Sketch.land

   An index of the most useful resources for Sketch
5. 

   Team Sketch

   A community for Sketch designers powered by Slack.
6. 

   A-Z of Free Sketch Plugins

   Sketch plugins in alphabetical order. Just click on one of the letters below and you will be taken directly to the section.
7. 

   Matter - An expanding UI Kit for Sketch

   Get a head start with a broad range of pre-designed controls and UI templates.
8. 

   Mobile App Design from scratch

   A step by step guide to learn how to design a great mobile app.
9. 

   Awesome Sketch Plugins

   A collection of really useful Sketch plugins. You can contribute!
10. 

    UI8

    Wireframe Kit V2 Now Available for Sketch
11. 

    sketchdesign.io

    Videos courses to learn design with Sketch.
12. 

    SketchCasts

    A weekly screencast covering Sketch app
13. 

    Sketch's Chinese community

    Sketch's Chinese community.
14. 

    Sketch App related articles and resources

    Sketch App related articles and resources