At a workshop last Saturday, Ben Preddy, a local teacher, mentioned that the educational resources of the Internet are daunting. He asked how teachers might conveniently tap into these wonderful resources?
I suggested that a good way to start would be by posing questions on newsgroups (such as geometry.pre-college) about specific resources you're interested in finding. Also, I'm not sure that at this time there exist a huge amount of *mathematics* materials (but the Forum's own Annie Fetter is a member of the task force of the Consortium of School Networking which is surveying educational resources - I'm sure she'll report to us at appropriate times.)
It seems to me that a good way to build up mathematics resources is for teachers to post annotated lists of their own favorites. Additions to and discussions of these lists can build up into important resources - and one can archive anything which exists electronically. We'll post pointers to such discussions in our monthly listing of archived materials. We'll also have occasional discussions of how to search our archives and others on the Internet with such wonderful modern tools as WAIS and gopher.
Ben has just posted his list of favorite geometry manipulatives, with some interesting questions at the end. Hope others will join in, as well. (Ben did a great job, and while I don't want to encourage complete sloppiness on the Forum, do note that one wonderful thing about newsgroups is that posted items need not be "perfect" or "entirely original" to be useful and interesting to others, so you can toss in something without killing yourself.) All teachers have favorite resources - share a bit and gain a lot!