Hi fellow SEOmozers, I noticed that a lot of websites have additional characters and words at the end of the URL in addition keyword optimized URL.  Mostly for E-Commerce sites For example: www.yoursite.com/category/keyword?id=12345&Keyword--Category--cm_jdkfls_dklj  or wwww.yoursite.com/category/keyword#83939=-37292 My question is how does the additional characters or parameters(not necessarily tracking parameters) affect SEO? Does it matter if i have additional keywords in the additional stuff in the URL (1st url example)? If you can provide more information, that would be helpful. Thank you!

Hi SEOmozers, I have another question.  =]  Thanks in  advance. First question: How important is the breadcrumb for SEO? I know that breadcrumb makes better UX because it shows how the visitor landed on this page and the breadcrumb may show up in the search engine.  But other than that, how important is it? Second Question: If I have a page that can be found via 2 locations, how should I handle this in regards to breadcrumb? For example, I have page A.  You can access page A via Category A and Category B.  Therefore, what I did was list Page A under Category A and when someone visit Category B and click on Page A, it will redirect to the page A that was found via Category A. The problem is on page A, the breadcrumb is Home > Category A > Page A.  So if someone visit Category B and click on Page A, it redirects and the breadcrumb shows Home > Category A > Page A. What should I do with the breadcrumb for Category B > Page A? Should I create another page A and just use canonical on it? Should I create another page A but do not index it? or leave it as is? 1 Page A, can be access via 2 categories. Please advise. Thank you!