My 2 year old site used to get between 300 to 600 pages viewed by MSNBot Spiders daily. However, starting September 17th the number of page views by MSNBot Spiders jumped to between 2,500 and 3,000. It has been at this high level ever since (about 5 weeks now).
I never received much traffic from Microsoft's search engines, and it still is just a small percentage of my over all traffic.
Is there any explanation for this unusually high MSNBot Spider traffic?