You might try using www.google.com as your search engine. It separates the grain from the chaff better than most, I think. In particular, I found this link, which looks informative: http://www.fsl.orst.edu/home/usfs/mycology/truffs.html Linda Kuczwanski In a message dated 2/27/99 3:49:19 PM Central Standard Time, mlaute@micron.net writes: << Whatever works for you is fine. There are new gardeners on the list and beginners who will ask people on this list what works for tomato growing. I don't think it's fair to tell them that only this works, and this will cost you XXX$. I have run searches for mycorrhiza, and nearly all of the sites that I've found are commercial sites selling it and talking it up. I guess I'll have to restrict my searches to .edu and see if there is any independent source (not that university ag professors are necessarily independent). I would like to get info from someone who isn't profiting by its sale. I don't appreciate the nastiness here, either. Margaret >>