Waiting on clarification.

Excellent!  thanks so much.

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Very interesting links.  Just what I wanted.  Thanks.

A very helpful direct answer with relevant references that I will follow up.

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You answered the question very well and very quick!  Thank you very much!

THANKS

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This was a very good answer from a usability and capability
standpoint. I would have liked some more examples of the impact of
using multiple browsers on one laptop, other than the decrease in
performance. BUT - OVERALL VERY GOOD!!

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Though portions of the response are well written, and address an
element of the question, the question was not answered. Granted, the
question is difficult.

Having read other response provided in this Google Q&A service, I
tried to head off general commentary by saying the client and I are
SEO aware. I stated they had received SEO advice and that they were
implemeting an architectural change. To assume you are communicating
with SEO novices is a bit presumptious.

Here's a portion of an answer I received thru another venue. It
doesn't answer the question with certainty --but it does offer a very
probable explanation based on solid and irrefutible analysis. It was
provided with a lot of abreviations and shorthand wording, so I
rewrote it for here. Any errors are mine.
===========

The EuN FQDN is:  www.execunet.com/  The EuN architecture seems to be
in part based on the assumption that visitors are arriving at and
beginning their visits at the default home page. Note that if they do
arrive at the default home page the PREURL variable seems to be
included in each html link on the page (as are the CFID and CFROKEN
variables) except the login link.

But visitors and bots also arrive at pages other than the home page; a
link to EuN from some other site may look simply like another heavily
trafficed page URL (not home the page), like
http://www.execunet.com/e_home.cfm, or like
http://www.execunet.com/r_home.cfm, for example. The query portion of
the URL is not likely to be present unless the link is from a tracked
source (e.g. ?welcome=xxxxxxxxx), but in any event, the PREURL, CFID
and CFTOKEN variables will not be in the requested URLs. The html
links on those pages, called in this manner, sometimes include the
PREURL variable and sometimes do not.

Now that we know that PREURL is sometimes not in the called url let's
take an educated guess at the effect on Google's spidering and
indexing of the EuN site. Google's stated bias against dynamic urls
means that they (say they) index more pages with a parameter than
those urls with two parameters; more pages with two than three, etc.
Where PREURL is found it is frequesntly the third or fourth parameter;
when it isn't included, the url often has only two parameters. If you
take Google at their word, this is part of the reason you are seeing
one (or a few) PREURL urls in the index, even though thousands of
instances are in the index.

My advice, the sooner your client fixes this, the better!
=========

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Splendid. My first foray into Google Answers and webadept certainly
lived up to his or her name.

Thanks again to webadept-ga for an excellent and generous response.
Great job, really. This is in response to your July 14th posting.
I hope you will remember my name for future consultations.

Outstanding answer!  The pointer to existing classified ad scripts was very helpful.

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Extremely helpful! Very insightful from many different angles. You've
set me on the road to enlightenment! Keep up the good work.

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The answer was very helpful, but the writeup had a couple of typos
that made it a bit hard to read.

This response is complete, very informative, and very useful.

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Sorry I could not rate this earlier but I was too busy and at first
things did not work. Hope to be able to use your answer and comments
by others advantageously to the extent that this nessy task can be
made to work.

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gave me just what i wnted..as always,  excellent work

you did not do what i asked you to do( i ask for 2000 words you gave
me the link) $100 the links wow!

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webadept-ga has an amazing amount of patience - and was very
responsive.  Hope I can get this person again if I have another flash
question.  I love this service!

Phew!

Speaking for the whole gang, glad and relieved to hear that things are
OK.  When the hurricane hit us a few weeks back, power was out for a
week, so I guess there's something to said for trees going up in smoke
rather than falling down on transmission lines.  Still...I'll take a
storm over flames any time.

All the best...

paf et al

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Did a full scan check for virus. The link is working ok.

good reference material

Thank you for an excellent answer! I will be looking for your services
in the future!