Nick (bapenguin) has been nice enough to let me promote the ebook I published close to 2 months ago called Growing Up 8-Bit.  The book is available for download from Amazon as well as Barnes and Noble for $2.99.  You do not need a Kindle or Nook to read the book, both sites have clients available for a variety of computing and mobile platforms.  There is also an 8-page PDF sample I have put online for people to look at. It contains the early pages of the book after the Table of Contents.