What is the recommended or "best practice" Permalink Structure?

[AndreVanKets]

I have always been under the impression that by connecting pages to their parent pages as described in a.) below is best practice and makes sense to me.

a.) yoursite.com/category/sub-category/product/

b.) yoursite.com/product

But then i also understand the importance in terms of link juice being spread out across so many sub pages, and by using Example b.) you keep the link juice in tact.

Your thoughts on this?

Greg

[mrblue91]

I personaly tend to stick simply at /product when starting new websites, but on clients websites who already have it like a), I mostly don't see a point in switching over.

Take a look at: http://www.zalando.co.uk they always use the category as /post, and especially zalando.de is ranking like hell.