MAX7219LED8x8
UPDATE 2022: The MAX7219LED8x8 library, now renamed to MAX7219tiny has now a new home at tinusaur.com/libraries/max7219tiny . Check also this MAX7219 & ATtiny85 tutorial ...
SSD1306xLED
Coming soon.
SSD1306xLED is a library for ATtiny85 to work with OLED displays controlled by SSD1306.
This is the old page of the SSD1306xLED library.