Maimonides' Eight Degrees of Charity: From the Mishneh Torah, as translated by Jonathan J. Baker.
Maimonides: The 613 Mitzvot: These prescriptions and proscriptions, in the order of Maimonides' Sefer Hamitzvot. Provided by the Fordham Medieval Sourcebook.
Oath of Maimonides: From the Fordham Medieval Sourcebook.
The Laws and Basic Principles of the Torah: Immanuel O'Levy's 1993 translation, as a single text file.
The Laws Concerning Mashiach: A section from the Mishneh Torah on this subject.
The Thirteen Foundations of Judaism: From Maimonides' Commentary on the Mishnah, as translated by Eliezer C. Abrahamson.