Found some ebook about Embedded Computer System from one free ebook
site.
Here are some title to share among us.

# Building Embedded Linux Systems - Oreilly
# Embedded FreeBSD Cookbook
# Embedded Systems Firmware Demystified
# O'Reilly-programming embedded systems in C and C++
# Programming Embedded Systems with C and GNU Development Tools, 2nd
Ed

http://ebook.mazudi.com/?w=embedded