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You may also want to note these are high PR blog roll links so I would rather not have them directed to some minor landing page that may only get me 5 visits per day even if it is number 1 in SERPS.
again I am getting links to this: blogname.com/category/linked_here/
External links can obviously help the ranking of these, as can additional unique information to take them away from being a simple list of links/snippets to being a more standalone content page.
You may also want to note these are high PR blog roll links
Blogroll links can help, but not as much as a "natural link". Google is now smart enough to know when a link comes from an article (editor's link) or from a blogroll (vanity/friend/reciprocal link). Too much blogroll links can be a waste of money/time.