Lame_Wolf - 11:18 am on Apr 15, 2012 (gmt 0)
I did nothing different. I hadn't changed anything for days (removed adverts that were low performing and replaced them with my own advert which points people to pages that do have adverts.)
Plus, I had approximately half the amount of visitors than I have for a weekday.
Yes, I am in the UK, but my site is US based, and mainly for the USA market.
Really odd day to say the least.