I got a few books from the libary about bike maintenance and they all have a chapter dedicated to cleaning - they all seem to advocate cleaning the bike once a month (more if you ride in wet, muddy conditions).
Yet, when I search the commuting forum for old threads on cleaning, there seems to be a distinct school of thought that is against cleaning a bike altogether!
What's up with that? Doesn't mud, dust, etc corrode or otherwise damage the frame and components???