I used to have very highly ranked keywords in the MSN index, but now we barely even exist in it. We have 8000+ pages on our site and Y! and G have us fully indexed while MSN has us for only ~100 pages and no where to be found with our keywords. any ideas on this problem?
In my experiences, I've come to find that MSN goes up and down drastically on indexing my site. I would call it normal, as it is regular for me to see hundreds of links one day, and 5 the next.