Most recent addition is Thomas Aquinas' commentary on the first book of Aristotle's Metaphysics (more to follow). This is comprehensively linked to the Aristotle text (English only, for now) using Bekker numbers (the only version of Aristotle on the internet which gives you this, I believe). Later I will replace this with the Latin translation from the Greek made by William of Moerbeke in the 1260s. I have a bit about William here.
I hope this is useful to this community. I owe the community a lot when I first began translating Latin five years ago. I have improved a bit since then and with a bit of luck my first translation (of an early work by Scotus) will be published next year!