Over months or years, I periodically get spidered by this crawler: www.almaden.ibm.com/cs/crawler. They go away and come back again. I never see any referrals like I would expect from a regular search engine. Any ideas what their purpose is? This must be costing them money. Almaden is a district of San Jose, CA and IBM is all over San Jose. I live 25 miles to the north.