best yet
for sure. this series of tutorials has got to be one of the best yet. your tutorials cover useful topics, give good basic details/explanations of the topics, and get more advanced with every tutorial. i really think you've structured these tutorials well, and have done all NG members a great service by submitting these.
and really, dont stop the 'statistics' sections or your bit on the audio portal, because i totally agree with you, not enough people go to the audio portal, i infact have NEVER, not ONCE clicked on that button and gone to the audio portal, and thanks to you, now i shall :D.
so once again, this is a great tutorial, every week gets better. so keep up the great work mate, it is awesome.
overall score: 8/10
(THE THUMB: UP!!!!)