We have a site which has a sidebar with sections (or "widgets" if you like) showing stuff like "Recent Articles", "Other Articles by this User", "Similar Articles" etc.

The issue is, Google seems to take these links very seriously. In fact, if I have only a single article which is closely related to a certain phrase (and several other pages link to it in their sidebars), when I do a Google search, it lists all those other pages highlighting that one link to the page that should actually be the most relevant one. And these pages don't even mention the phrase anywhere else.

It there a common approach with adding these sidebar links? For example, I might add them through ajax after the page is loaded, but then crawlers will have harder time finding them?