michaelj72 - 2:57 am on Nov 28, 2011 (gmt 0)
I think i can chime in on this one as I have a recent experience with one of my inner pages. about a year ago while checking backlinks I came across this really juicy link (it was like after the article on the niche as a 'reference-resource', nice anchor text, and with some other big well known sites too who have info on the niche) from a major world-wide news-paper to a page that I've put work into over the years and is pretty unique for my location with the usual original content and good photos. that page for its particular keyword had always been around position #6-7-8 or so and then within a fairly short while of seeing that link (I don't know when they actually added the link but I do keep pretty close tabs on my backlnks), the inner page went to like #3-4 position and then to #1 and has been there ever since.
now, I know lots of people in seo throw around the 2-3-6 month thing and I have to say there has to be some truth in that, approximate anyway, as the effect wasn't immediate and I didn't really do any or much other backlink work on that particular page. so my impression is that links like that will mature over a 2-6 month period.
another thing I've read and I have no idea who has tested it or how it's tested but some seo people will claim that like at first it's only 15% of the value/authority of the link that's passed and then after a month or 2 it's, say, 30-40% and so on...... - as the link 'matures' it passes more 'value'. I can also believe that these ball park figures are somewhat accurate from what I saw with this particular page of mine. and then of course being in the #1 spot attracts more attention and a few more links, i'm a small time player that's for sure and it's not a money spot at all more informational for my niche, but it was interesting to watch that rise in the serps.