| 1. | World most popular search engine Google. |
| 2. | World second search engine Yahoo. |
| 3. | Russian search engines Yandex. |
| 4. | Russian search engines Rambler. |
| 5. | Weather in Ufa for three days. |
| 6. | Information site RussiaTrek for tourists visiting Russia. |
| 1. | World biggest archive of papers in Physics, Mathematics, Computer Science, and Biology http://arXiv.org. |