Houghton Mifflin Harcourt
Harcourt: Biographies: Anton Von Leeuwenhoek
This brief biography of Anton von Leeuwenhoek is a great resource to understand how influential he was to the discovery of cells in his time.
Wikimedia
Wikipedia: Anton Van Leeuwenhoek
This site from the Wikipedia encyclopedia provides a concise explanation of van Leeuwenhoek's (1632-1723 CE) contribution to the improvement of the microscope and his contributions to cell biology.
Other
Science Superstars: Anton Van Leeuwenhoek
This site is provided for by Zephyrus. So, who was Anton van Leeuwenhoek (1632 -1723 CE)? What else did Leeuwenhoek do? Did he achieve anything else? What honors were awarded to him? These questions are answered in this informative site.
Other
Leeuwenhoek's World of Microbes
This site has some history of van Leeuwenhoek (1632-1723 CE) with a description of his major accomplishments in the field of microbiology