Via the Silicon Alley Insider: "The best days to spam publish wall posts on Facebook that you want your "fans" to pay attention to are Mondays, Tuesdays, and Wednesdays. Or so says marketing firm Virtue… The chart — compiled from nearly 200 million fans impressions on Facebook pages over a 5 month period — shows that users click on links in Facebook fan pages 10% of the time on Tuesdays and Wednesdays, and 9% of the time on Mondays, with much lower rates later in the week.
