1 blog_angel Dec 15, 2009 15:17
3 fplanque Dec 17, 2009 18:42
Indeed, the aggregate has nothing to do with PR.
Also note that Google does not mind if you duplicate your own content on your own site (by category, by tag, by date, by aggregate, etc...). They will just select one of the versions, the one they deem being the best depending on the user request.
What Google *does* mind about is if you duplicate content from another site on your site. That's not good and should be avoided.
The aggregate post thingy has nothing to do with your PR.
I just (finally) got mine back after loosing mine some months back.