クリエイティブ・コモンズ / CC検索
Search over the Creative Common partners for free content, mainly images (more than 500 million!). Only two initial options: can
検索
Search engines and search tools, from the most famous ones to very specialized. Note that standards and regulations search have their dedicated “Standards” category and therefore not included here.
Pexelsの無料画像
Millions of pictures. Check the license, but at time of writing: free to use no attribution required (but possible and
Pixabayの無料画像（動画や音楽も含む）
2.3+ millions of royalty free images, movies and sounds. A must for any website or graphic user. Is sponsored by
Everypixel イメージメタ検索
50以上の画像ライブラリやエージェンシーを一度に検索できるだけでなく、非常に便利な組み合わせが可能です。