This document lists and provides links to 15 online visual tools that can be used for brainstorming ideas. Some of the tools allow searching for images by color, tags or industries. Others provide random images or videos to spark inspiration. The tools include services for moodboards, visual search engines, image collections on topics like nature and trends, and curated collections of images for brainstorming or showcasing innovations. The document also provides additional links to other visual inspiration and brainstorming resources.