Google SiteLinks

This has happened on one of the sites that I'm promoting, but there doesn't seem to be any real rhyme or reason for it. It appears that someone manually went in and created the links. It use to link over to the different product categories for the site before the redesign, now it links to products, careers, about, and sales and support.

Maybe it is automated by the number of links, or the number of click-throughs to a page, but it appears that the only way to get them is to be an authority in your field with lots of regular inbound links.
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