Various libraries that I either have updated (from others) or created myself. Download and copy the desired lib to your Arduino libraries folder. The default locations for these are: On your Mac:: In (home directory)/Documents/Arduino/libraries On your PC:: My Documents -> Arduino -> libraries On your Linux box:: (home directory)/sketchbook/libraries You may need to create the "libraries" subfolder if you haven't done so already. See each lib for it's License.