I couldn't help but notice that about 98% of your pages are no longer part of
the Google index. They say that the 'site:' operator is broken, but it seems
evident, from internal site searches, that pages were lost/dropped. Then,
just to test the hypothesis:
http://www.google.com/search?sourceid=mozclient&num=50&ie=utf-8&oe=utf-8&q=site%3Aalgebra.com
Right, so Igor's Wikipedia mirror *cough* does not seem to have led to
penalties (filtering) or page depletion. Likewise, for example:
http://www.google.com/search?num=50&hl=en&lr=&c2coff=1&q=site%3Aphotomatt.net+&btnG=Search
The zillions of photo pages seem to still be indexed (many such pages are
duplicable and contain 0 content). MeyerWeb and other large sites likewise.
So, what I can conclude is that pages are being dropped selectively/randomly
and, as a result, referrals from Google are on the decline (others snatch
these).
According to [1], these will be readded, but I can't help but feel that
Google's broken algorithm keeps playing tricks while they leave everybody
else in the dark [2]. What's more, didn't they say that they would patch the
bugs within a couple of days [3]? Nothing has changed _at all_ since. If it
broke and they can't fix it, they should just say so. I bet they are afraid
of public response, as in "What? Google is broken? So that's why I get
irrelevant results and 404's? I'll take my business somewhere else then".
They ought to open up and explain what is going on. There is no scheduled
major update/overhaul, not one which was named anyway. They had a major bug
and I think they ought to stop explaining that "site:" broke while it's a
proven fact that many pages were lost. So they tried the 64-bit BigDaddy and
blew it, spoiling all datacentres in the process. They should say so and lay
our some schedule for Webmasters to look at. Some people make a living out
of this, you know...
[1] http://www.seroundtable.com/archives/003786.html
[2] http://www.pbs.org/cringely/pulpit/pulpit20060525.html
[3] http://sitemaps.blogspot.com/2006/05/issues-with-site-operator-query.html
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