Partial drop out of index?

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I got a PR5 (still PR5) site with hundreds of "real" inbound links and
tens of thousands of pages - it's a phone/address directory site.
Recently, i noticed something strange happening:

1. If i do a, i got only 2 pages, the homepage
and one of the inside pages.
2. If i do a keyword, i got like a thousand
results returned.
3. My domain also fell for the top keyword from the 2nd to like 15th
position (even that, it shows a subpage instead the homepage as it was

Is this a index shuffle or penalty?  I've experienced many reshuffling
previously, so i thought i should just wait a while to see what happens.

Re: Partial drop out of index?

with hundreds of "real" inbound links and
Quoted text here. Click to load it

What is the URL?

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