I used to have a few pr3 blogs. A few months ago I took these all down as I didn't think I would need them again, but things have changed and I do. These all used to be pr3's but are now not rankes due to not being offline. Do you think these will get the pr's back on the next google update, or are they gone forever? Is it even worth worrying about these or is it just small part or seo????