Creative Commons search engine allows you to search for CC licensed content from up to 13 popular search engines with a single click and from a single page. Creative Commons search is not a search engine per se but only a portal that pulls out results for your queries from the search engines it supports.
Here is how to conduct a search query for an image licensed under CC using Creative Commons search service:
1- Type in your search query
2- Select whether you want to look for images to use in commercial purposes or ones you can modify, adapt or build on.
3- Select the search engines you want to research.
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