SakyaLibrary

SakyaLibrary is an excellent collection of Tibetan texts, not just by Sakya authors.  The texts here are in both PDF and Doc (Word) formats for download. Examples of collections are: 

• Madhyamaka དབུ་མ་
• Vinaya འདུལ་བ་
• Prajñāpāramitā ཤེར་ཕྱིན་
• Abhidharma མངོན་པ་
• Pramāṇa ཚད་མ་
• Trisaṃvara སདོམ་གསུམ་ (study of the three types of vows)

These then have both key root texts as well as commentaries by Sakya scholars (རྩ་འགྲེལ) .

The library also has the five founding Sakya patriarchs' ས་སྐྱ་གོང་མ་རྣམ་ལྔ་ collections such as Sakya Pandita as well as other large collections. The tantric texts are restricted by the downloader having to fill in a form stating the s/he has obtained the proper empowerment (དབང་) .

Interestingly this library also contains a nice set of Shangpa Kagyu (ཤངས་པ་བཀའ་བརྒྱུད་) texts.

The search system also works nicely as you you could find hits based on the title or contents.