I have the same problem with one of my sites. Only the index page is shown on yahoo while most of the pages are listed in google and msn (about 4000 page site). I emailed yahoo asking about this and I got this reply:
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Hello,
Thanks for writing the Yahoo! Search and Directory Support.
I understand that you have a question about why only the index page of
your site shows in Yahoo! Search.
It has been determined that your site may not comply with Yahoo!'s
Content Policy Guidelines located at:
http://help.yahoo.com/help/us/ysearc...etions-05.html.
Below are some answers to common questions regarding this issue:
Q: What are some of the common reasons that a site may violate Yahoo!'s
Content Policy Guidelines?
A: Yahoo!'s Content Policy Guidelines (link above) outline what we are
and are not looking for in pages that we index. Listed below are some
of
the more common examples of how a site may violate these guidelines:
- Cloaking (showing crawlers deceptive content about a site)
- Massive domain interlinking
- Use of affiliate programs without the addition of substantial unique content
- Use of reciprocal link programs (aka "link farms")
- Hidden text
- Excessive keyword repetition
Q: If my site violates Yahoo!'s Content Policy Guidelines, can I still
use the Search Submit inclusion program?
A: All pages submitted to Search Submit are editorially reviewed. If a
site has is not in compliance with the content policy guidelines, it is
likely to be rejected by the Search Submit program.
Q: If my site violates Yahoo!'s Content Policy Guidelines, can I use
the
Yahoo! Directory Submit program?
A: The Yahoo! Directory and Yahoo! Search Index are different systems.
Inclusion or exclusion from one does not affect the other.
Q: How can I have my site re-reviewed?
A: Please review our content policy guidelines to make sure that your
site meets all of them. When you feel the site is ready, please
complete
the form located at:
http://add.yahoo.com/fast/help/us/ysearch/cgi_rereview
to request a re-review of your site. You may wish to include an
explanation of unique features on your site, or details of changes to
your site's content that may assist our editors in their evaluation.
Please allow several weeks for the review process, YST indexing, and a
complete refresh of the database before checking
http://search.yahoo.com
to see if your site is listed in the Yahoo! Search Index. We do not
offer specifics detailing how an individual site is not in compliance
with our guidelines, but we will review your site individually. You
will
not be receiving further notification regarding your request for a
second review, and we are not able to offer the option of another
review.
Thank you for taking the time to make the Yahoo! Search Index better.
For answers to other questions you may have regarding Yahoo! Search,
please see:
http://help.yahoo.com/help/us/ysearch/
For answers to other questions you may have regarding the Yahoo!
Directory, please see:
http://help.yahoo.com/help/us/dir/
Search & Directory Support
Yahoo! Inc.
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Out of that list that yahoo dont like, the affiliate links is the only thing that yahoo must want to list me for, even though I have hundreds of pages of unique content without affiliate links.
James