Forum Moderators: Robert Charlton & goodroi
If you are talking about 100+ links on a normal page, then I think there may be problems. I suspect (without any proof!) that Google takes shortcuts in determining page PR. If there are too many internal links in a site, this may upset Google's calculations and result in some pages getting less PR than one would expect, or getting greyed out, or going supplemental.
1. Keep the links on a given page to a reasonable number (fewer than 100).
2. Offer a site map to your users with links that point to the important parts of your site. If the site map is larger than 100 or so links, you may want to break the site map into separate pages.
Although I don't think its a hard and fast rule to keep links lower than 100 but the reason for this statement is to increase the quality of the web page, so that bots can properly crawl your complete links.
I restructured with four categories on separate pages and it is back in the top 5 for key searches.