Google PR

It was not until yesterday that I got hold of this fact.

Let us say you have 10 points awarded on pagerank for a certain page.

Now, say you have 10 links on the page, out of which 5 are dofollow and the rest 5 are nofollow. As expected, the nofollow links get no PageRank juice at all, that is for sure. But the interesting thing is that, after this, even though you  are supposed to have 10 PageRank points left, your 5 dofollow links will get only 1 point each and NOT 2  point each.

That means even though nofollow links do not pass on any PR, they eat it up! In that case, it is always better to do some good, as it is already costing you. Also, getting a dofollow backlink form a page with a high number of nofollow links is seemingly less worthy!

In that case, how advisable is it to show your categories and archives on the homepage? They are a huge number of links and apparently nofollow.