Other
Wichita State University: Takakazu Seki Kowa (1642 1708)
This site provides a general biography of Takakazu Seki Kowa, "the arithmetical sage." Content focuses on his known accomplishments. Also includes related links.
University of St. Andrews (UK)
University of St. Andrews: Jacob (Jacques) Bernoulli
This site, which is provided for by the University of St. Andrews, contains information on the life of Bernoulli.
University of St. Andrews (UK)
University of St. Andrews: Takakazu Seki Kowa
The University of St. Andrews offers this biography of Takakazu Seki Kowa. Many interesting links are provided.
Wolfram Research
Wolfram Science World: Bernoulli, Jakob (1654 1705)
This site from ScienceWorld provides a brief but factual abstract of Bernoulli's math accomplishments. Links are provided throughout for additional information on related subjects.
Wikimedia
Wikipedia: Jakob Bernoulli
At this site from Wikipedia you can read a brief biography on the life and accomplishments of mathematician Jakob Bernoulli (1654-1705 CE).