[camtarn]

There's a nice tip in the comments for that article:

"In Google Calendar, pick the "4 Weeks" option at the top, instead of "Month" and it functions exactly as you describe, with the current week at the top. -benjymous"

I didn't have a 4 Weeks view - turns out there's a setting which controls what the button between Month and Agenda does, in Settings -> General -> Custom View. There's also a setting above that for which view is your default when you reload the calendar.

[pedrolll]

I've set 4 weeks as default in Google Calendar, so reading this article was baffling at first. Curious that 4 weeks doesn't show up for everyone. It is infinitely more useful than the month view.