http://www.wasm.ru/print.php?article=macrodesign
What was the point of posting that link, the article is in russian? The last time i translated a page from that site through babelfish it did a very poor job.
Looks like a fairly thorough guide to using masm, but of ocurse it's in russian..
Are you asking for something similar in english? -- http://msdn2.microsoft.com/en-us/library/afzk3475(VS.80).aspx