LCD Module documents

Linux LCD Module
http://lcd.sourceforge.net/
LCD module - Parallel port interface
http://lcd.sourceforge.net/lcd_parport.html

Hitachi LM018L- HD44780-Based LCD Modules
http://www.doc.ic.ac.uk/~ih/doc/lcd/

Crystalfontz 633 Serial LCD Module
http://www.crystalfontz.com/products/633/index.html
Block Diagram
http://www.crystalfontz.com/products/633/block_diagram_633.html
Software
http://www.crystalfontz.com/software/index.html

Using the LCD Module with an 8051 Microcontroller
http://www.iguanalabs.com/mbklcd.htm

PIC16/17 microcontroller & BASIC Stamp
http://www.doc.ic.ac.uk/~ih/doc/pic/

Microchip PIC16C57C