| Baidu | Most popular search engine in China and second most popular worldwide |
| Baidu Baike | Chinese collaborative encyclopedia with over 20 million articles |
| Baidu Images | Search for images on the web |
| Bing | Search engine operated by Microsoft |
| Bing Images | Search for images on the web |
| Bing Translate | Translate text |
| Brave | Independent search engine |
| Daily Motion | Hundreds of millions of videos |
| Dictionary.com | Meanings of words |
| DuckDuckGo | Privacy focussed search engine based on Bing |
| Ecosia | The search engine that plants trees |
| Flickr | Tens of billions of photos |
| GitHub | Tens of millions of code repositories |
| Google | The most popular search engine and most visited website in the world |
| Google Books | Searches within the content of tens of millions of books |
| Google Images | Search for images on the web |
| Google Scholar | Searches hundreds of millions of academic papers |
| Google Translate | Translate text |
| Grep.app | Search for code via exact match or regular expression |
| Hacker News | Over twenty million posts, mostly about startups and technology |
| Internet Archive | Library of many different media types with tens of millions of items |
| Listen Notes | Podcast search engine with over 100 million episodes |
| Mojeek | Independent search engine operated in the UK |
| NCBI | Searches multiple US national medical databases |
| Pexels | Over one million royality free, high quality images |
| Qwant | Independent search engine operated in France |
| Reddit | Hundreds of millions of posts about everything and anything |
| Scite | Finds citations of academic papers |
| SearX | Open source meta search engine |
| Search My Site | Searches a curated corpus of independent websites |
| SoundCloud | Hundreds of millions of songs |
| StackOverflow | Questions and answers about software development |
| Twitter | Hundreds of billions of tweets |
| Vimeo | Videos. I don't know how many. But it is among the 200 most popular websites. |
| Wikidata | Over one billion computer readable statements about our world |
| Wikipedia | Millions of high quality, crowd-curated articles |
| Yandex | Most popular search engine in Russia |
| Yandex Images | Search for images on the web |
| You.com | Search engine which displays the results in categories |
| YouTube | Most popular video site with over one billion videos |