I have also kept my scrolling HyperMail-ish archive (the last two weeks' of
messages) alive here:
http://www.mccmedia.com/robots/
Nick
you want low cost...? If you're using the Microsoft server,
you can download a free version of our engine from www.verity.com. If
you're using Netscape, a free version of our engine will be included in the
2.0 release. I'm not sure if it's in the current beta.
Otherwise, you might look at Glimpse, which is used in Harvest, the
University of Colorado distributed search project. There are lots of
others, too, but I have enough trouble keeping track of the commercial ones
without trying to keep an eye on the p.d. ones.
Nick