So I was looking over the stats for one of the local search sites we own (European) - 500,000+ searches, so a decent spread. (An aside - we operate and test roughly a dozen simple local search sites for various countries to gauge user-reaction on quality of data).

The site does roughly 4000 unique visitors a day (weekdays). On weekends it drops to 1500 unique visitors a day - a drop of over 50%.

But what is odd is that on weekdays there are roughly 2500 searches conducted. On weekends, it drops to 250 - a drop of roughly 90%.

Mind you this is just raw searches - they could be visiting the site and then searching, or finding the site via a search engine and then searching, or whatever other combination.

Still an interesting thought - are people more willing to seek out what they want on work-days?