1. Google Image Search – Google Image Search is one of the most visited image search engines on the web that allows internet users to find their interested images on the web easily. One of the best image search engines that allows you to filter images by sizes, colors, clip arts, etc . You can also find similar images by uploading pictures or pasting image url to this image search engine.
2. Yahoo Image Search – Yahoo image search is one of the best image search engines to find latest and high quality images on the web. You can also browse millions of high resolution images easily through Yahoo image search.
3. Bing Image Search – Great image search tool to browse millions of high quality images quickly. Bing lets you to find images by sizes, colors, types, layouts, people faces etc. You can navigate similar image results from sidebar the search engine.
4. Ask Image Search – Ask offers also a powerful image search tool to find your interest images on the web.
5. Flickr – Flickr is one of the most popular image search engines and image hosting websites where you can browse millions of high quality pictures easily.
6. Picsearch – Picsearch is a useful image search engines that allows users to find images by sizes, colors, image types, layouts. You can browse thousands of beautiful pictures quickly using this image search engines. Great alternative to Google Image Search Engine.
7. Pinterest – Pinterest is a image based social bookmarking website that also allow people to make friends and comment on pictures. You can find here millions of pictures easily. Great social site to browse your interested photos easily.
9. Dogpile Image Search – Useful image search engine that lets users find images from thousands of photo websites.
10. Exalead – Powerful image search engine that can help you to browse pictures on the web easily. You can use this image search to find beautiful photographs, wallpapers, clip arts, logos etc.
In this article, I have listed only image search engines instead of image hosting & sharing websites. If you are looking for top free image hosting & image sharing services, you can read this article- Top 10 Image Hosting Websites .