http://www.codeproject.com/Lounge.aspx?msg=2679158#xx2679158xx
Although recently I was working on an embedded system, and saw revision
dates going back more than ten years. I was quite surprised at how
well-structured and commented the code was. Very easy to modify. One of
my co-workers told me that was mainly because of the team leader, who
held regular code walk-thrus, and kept a "coding hall of shame" on an
internal web site.