The art of code commenting

[from WebWord] Found this freshmeat article via on the art of code commenting interesting because I've been writing a lot of code in HTML::EMBPERL for a user-customizable application -- I've been immersed in this the past few weeks, which explains the bloggin slowness on iaslash. The essence of coding is not only in writing efficient code but also in making the code understandable by others that have to work on it. Reminds me of a PHP article about elegant coding that I can't find at the moment. Will post it here if I find it. Or maybe someone else will?