Resources - Critical Editions from the Institute of Tibetan Classics

Here's another good source of original Tibetan texts that have been re-edited for fixing typos and so forth, Downloads from the Institute of Tibetan Classics. This is the group that is publishing 30 key Tibetan texts, called the Classics of Tibet Series. For example the Kalachakra commentary Ornament of Stainless Light translated by Gavin Kilty and the Lo Jong commentary called Mind Training translated by by Thubten Jinpa. was created by this group. This institute headed by the main translator of HH Dalai Lama, Thupten Jinpa.

The forthcoming Lamdre collections of translations by Cyrus Stearns is also one of the projects.

These PDF files correspond to the book translations, so you could follow along and see how the translations were done.