New Advent
Catholic Encyclopedia: Alcuin
This Catholic Encyclopedia site offers a very good biography of Alcuin, with extensive information on his work as an educator, a scholar, a theologian, and a liturgist of the 8th century. Please note that "The Catholic Encyclopedia" is a...
University of St. Andrews (UK)
University of St. Andrews: Alcuin of York
This site has a description of the 8th century mathematician Alcuin of York's works and life.