Internal Link - How effective to ranking

[WearYouWant]

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[MichaelC-15022]

There's a little effect on ranking in terms of the anchor text of your links helping with relevance.  And there's link juice that flows internally to the target page.  But it's not anywhere near as strong as a link from an external website.

Do make sure, however, that all of your major category pages are linked to from your main navigation, so that ALL pages on your site have a link to those pages.  Make sure as well that these are plain HTML links, not Javascript, etc.