Examined my primary kw combo for top 20 results only.
Canada, Anz, iwon with practically identical results: 4 pages of top 20 in excess of 7 mos old, one hits at number five and one that dates back to Oct 98 hits at 17. Rest of pure ink through 100 are fresh, like 10-90 days.
Hotbot's first 22 are from dmoz who must be responsible for delivering old pages in the mix to the tune of 36% or a whopping 8 pages in excess of six months old, the number one result being one year old. Of the 22 coming from dmoz, five are no longer even in dmoz and have old submit dates accordingly.
AV returns 30% of the top 20 or 6 pages which are over 6 mos old, four of these are in the top ten.
NL returns 15% or 3 pages, the oldest of which is 10 mos old, none of them are in the top ten.
Then, there is whatever filtering HB is doing to what it gets from dmoz which I can't figure out, how are they handling what dmoz delivers? Is HB filtering or just taking what dmoz hands them? Probably only an insider there could tell, but evidently both are dropping the ball on freshness.