I have recently made two new additions to the reference section of the Ancient Buddhist Texts website. The first is a table that shows all the particulars of the Buddha, including Buddha Metteyya. The table can be filtered so you can find out up to 18 particulars about them, including their place of birth, their parents, leading disciples, Bodhi trees, etc.
The second is a table showing the Canonical texts and their commentaries and sub-commentaries, giving their proper names, and divided into Vinaya texts, Sutta texts, ABhidhamma texts, and also miscellaneous Abhidhamma manuals, etc.