Validated ideas - List of 5,000 poorly executed but popular apps
Christmas Design Assets by Iconfinder - Sprinkle up your seasonal content with these festive goodies.
The 25 Days of Ideas - Free resources for coming up with startup ideas
Creative Market - Buy and sell handcrafted, mousemade design content like vector patterns, icons, photoshop brushes, fonts and more at Creative Market.
IdeasAI - OpenAI-powered startup idea generator
Christmas HQ - Totally free holiday icons, images, borders and fonts