Biography.com: Mendelssohn, Moses: Short paragraph describing his career.
FOLDOC: Mendelssohn Moses: Relatively detailed entry from this philosophical database, with links to related topics.
Jewish Virtual Library: Moses Mendelssohn: Essay by Shira Shoenberg, emphasizing this German thinker's role in Jewish history.
Judaism as Revealed Legislation: A brief excerpt from Mendelssohn's classic Jerusalem, a philosophical defense of the Jewish faith.
Moses Mendelssohn: Scholarly study of this 18th-century scholar by Daniel Dahlstrom. From the Stanford Encyclopedia of Philosophy.
Moses Mendelssohn and the Bach Tradition: Article from 1999 by Steven P. Meyer. Discusses at some length Mendelssohn's thought and his role in preserving the Bach musical legacy.
Moses, the Son of Mendel: Gerhard Falk's commentary on this Jewish Enlightenment thinker and his status in Judaic history.
Wikipedia: Moses Mendelssohn: Article from this openly-edited online encyclopedia.