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Date: Wed, 07 Feb 2001 10:05:43 -0700
From: Bill Thoen <[log in to unmask]>
Subject: "Deep web" and "Invisible web" sites for GIS?
Sender: Bill Thoen <[log in to unmask]>
I've seen it written recently that the big search engines (Google, Alta
Vista, Lycos, etc.) can only search about 1/500th of today's web
content. Much of what's out there is either too recent, too deep, too
esoteric, or stored in unsearchable formats (PDF, mutli-media, etc.) to
be indexed by these big engines. However, a new breed of specialty "web
mining" servers is beginning to emerge (e.g.
http://www.google.com/unclesam for US govt info,
http://searchpdf.adobe.com for PDF file searches, and
http://www.ditto.com for images, to name a few.)
I'm looking for sites that specialize in indexing websites of particular
interest to people who "do GIS" for a living. Odden's
(http://oddens.geog.uu.nl/index.html) is a good example of the kind of
sites I'm looking for (deep, broad, high-quality, searchable, constantly
updated, and specialized in GIS-related area.)
A couple of others have come to light since I asked this question on
GISlist. These are "The Ultimate GIS Search Engine" at
http://search.geocomm.com, "The Maps & GIS INFOMINE Search Screen" at
http://infomine.ucr.edu/search/mapssearch.phtml, and the GIS Master
Bibliography, now managed by ESRI at
http://campus.esri.com/campus/library/bibliography/
Does anyone here have any additional suggestions for other notable sites
of interest to the GIS community? These sites have to be good for
locating the most obscure or interesting info inside GIS. They can even
be general servers that are good for ferreting out information about
business or financial activity (that can be applied to GIS companies or
the industry), or for searching obscure journals, bibliographies or data
sets.
Where do you go for info when someone asks you to find endangered
species habitat spatial data for the proposed Prairie Palace flagpole
subdivision in Sprawl, CO? Or where can one search the academic papers
on the current state of the art in spatial indexing (what ever happened
to GBT, for example?) Who online does the best job of delivering current
(or useful, or interesting) news and analysis on the GIS industry? Where
do you turn to first when you want to find out something? I'm also open
to opinions of where the research libraries stand compared to the 'net,
too. When you need an oracle, where do you turn?
Basically, I'm looking for the best search strategies that GIS/mapping
researchers use and the top-level sites they start with for a "deep
dive" into the 'net.
I'll summarize responses (unless you ask to be left anonymous), so feel
free to email me directly.
TIA,
- Bill Thoen
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