I am not sure I fully understand the principle of PageRank when it applies to internal links. Do you leak pagerank for every link (even internal) that is on a web page? Say the page is PR 5 with 50 links. (internal, none outside your domain) if you all of a sudden added 50 more links (internal), would your page rank/strength drop?
as far as i know the PR will now drop for the homepage (the one with PR 5) but the other pages will definitely be affected. try not to have lots of links (outbound links) on your homepage and little content because you may end up being treated as a link farms and drop in SERP.
if you are linking a page, pr will pass to that pass. linking to a page (internal or external) will be a reason to pr passing
you will not loose your PR unless you have too many outbound links and google considers you a link farm. as far as i know having lots of internal links will only affect the PR of your internal pages. if you pass out the PR over 20 pages is better than passing it over 100 don't you think? the more links you have the less PR you will pass to each page. it's pretty logical.
I've never understood this either. After having my site indexed it indicated that I had over 1700 inlinks keeping my blog together. Roughly guessing, most of my pages (except for my index page) have links that are 75 percent or more internal, with maybe 25 percent linking outbound (including Adsense ads). No matte how much I read up on pagerank I never really figured out whether my site was leaking too much PR or not.
agreed, but just because you are passing it out, doesn't mean your homepage is losing it. It just means that you are passing it out slower to your subpages if you have alot of them, and they will build PR slower.
I have seen some link pages to high PR sites of high TR and these pages the PR actually GOES UP! How unlogical is that..Generally these links were say about 4 or 5 to major PLC's Remember it happened with a holidays