A couple of month's ago, we had a good thread over a SEF talking about traffic patterns --the short of it was that EVERY webmaster other than those for kids reported that Friday and Saturday was their weekly low. Monday and Tuesday seemed to be everyone's high point.
Over the past 5 years, I've seen most of the other patterns/trends shift or flatten out, but not this one re weekends and Mondays.
And Summer holidays seem to hit traffic worse than any other season.
You know I do the mp3 thing so my weekends are just opposite with everyone else. Our biggest days of the week over there are Saturday and Sunday. That runs counter to everthing of course. Always depends on the audience.
We have an Asian business management ezine (nothing highly commercial - mainly business management tips, columnists, research articles news commentary etc). Obviously the audience is managers and management academics and researchers.
Sat and Sun is way down. Rest of the days of the week are fairly even at about double weekend rate. We used to have a Monday effect (up) and Friday effect (down) but not any more. We dont sell retail products hence we dont have any Monday effect as described above.