abwebdesign - 3:31 am on Jul 17, 2009 (gmt 0)

Don't bother with pagerank sculpting.

It's simple to decide what really shouldn't receive any PR.

Login pages, terms of user/service, privacy policies...things of this nature should absolutely contain the relative nofollow attribute.

Let the page rank flow internally. (except to pages that serve relevant content)

If you have a blog, and you are wondering whether or not you should allow comment posters to include a dofollow link, it really depends on what you are trying to do.

If you do allow visitors to post dofollow links, it will definitely increase traffic. But, also realize that you will need to moderate the posts, as many link spammers will attempt to take advantage.