I've been looking for an industry standard guide to designing Web interfaces. Here I found a good list of guidelines for designers of user interfaces in various areas (Win, Mac, KDE, Java, AJAX, Flash, etc). Still I found nothing like MSDN guidelines for desktop apps, but intended for Web apps. :-(
What I need is a solid basis for our (upcoming) internal guidelines, that technical writers would use to write and translate texts in web applications. If anyone has ideas, please drop me a line where to look up for this sort of guidelines.