You probably have seen this (AIR BEARING APPLICATION AND DESIGN GUIDE - NEW WAY PRECISION Porous Media Air Bearing Solutions™ ):
http://www.olympic-controls.com/documents/Air%20Bearing%20Design%20Guide.pdfSometimes this taiwanese ripped PDF is available, it looks like some pages of books and diagrams have been copied into it, but it looks pretty good:
***EDIT: sorry that link does not seem to work anymore, can still find the documet with google, but can't acess it. I don't know other name for chinese characters, but the name I learned in japanese "kanji" 精密工具機氣, but cant't read them

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Like OMG! That link is just few kanji characters on my firefox and here it covers half a page.....I'll try to fix it later. Anyway, I found it once, when I googled "the application of the narrow guide principle". I eventtually found and bought a book that had the interesting part...but in the end of that PDF it had a whole lot of stuff about air linear bearings.
Pekka