GitHub - issus/altium-library: Open source Altium Database Library with tens of thousands of high quality parts and 3d models.

GitHub - issus/altium-library: Open source Altium Database Library with tens of thousands of high quality parts and 3d models.: 

"Celestial Altium Library An exceptional, open source database library for Altium, currently supporting MSSQL and SQL Azure as the backend for easy use within teams, and no data corruption unlike MS Access. Current part count in live database: 28,635 in almost 600 packages. This library has been built for high quality data, with high quality footprints and high quality 3D models."

'via Blog this'

Altium Libraries

Database Library
Download Altium DBlib Library - Parts

Symbol and Footprint Libraries
Libs_CAndreatta 2013-02-14.zip
Libs_RRutledge 2013-01-30.zip

Footprints and Step Models
PCB Libraries Expert  IPC Standard Footprints

Altium Content:
Altium Community Libraries - Altium Design Content
Altium Legacy Libraries - Download Site

Open Source Altium:
Celestial Library Database.DbLib

That's it !