PR is the result of incoming links to that page "link juice" is the value forwarded to the target site with a link and thus contributes to the PR of the target page.
Link Juice refers to the quality or weight that any website can pass on to other sites through links.
Link juice is a term generally used to express the amount of page rank given to a page from an external link.
well to be more exact, link juice simply shows the amount of page rank given to a certain page coming from an inbound link.
the site doesn't show in Yahoo's siteexplorer list of back links? My site is linked to from another site/page that has PR 6. This site/page does not show in the list of back links when I use siteexplorer. Does my site still receive link juice from the PR6 page?
mmm... link juice. Link juice is what leaks out when you have PageRank leakage, especially when you have too much of it! See here for details: http://future-phobia.blogspot.com/2007/03/google-pagerank-leakage-is-actually.html and also http://future-phobia.blogspot.com/2007/03/google-will-soon-increase-pagerank-to.html