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I've got several URL's that I need to disallow in my robots.txt file. For example, I've got several documents that I don't want indexed and filters that are getting flagged as duplicate content. Rather than typing in thousands of URL's I was hoping that wildcards were still valid.

Does www.example.com and www.example.com/?utm_source=Google&utm_medium=Press+Release&utm_campaign=Google have the same SEO backlink value? I would assume that Google knows the difference.

My .htaccess file is set up to redirect a URL with a trailing / to the URL without the /. However, my SEOmoz crawl diagnostics report is showing both URL's. I took a look at my Google Webmaster account and saw some duplicate META title issues. Same thing, Google Webmaster is showing the URL with the trailing /.

My website was live for about 3 days before I added the code to the .htaccess file to remove the trailing /. Is it possible that in those 3 days that both versions were indexed and haven't been removed even though the .htaccess file has been updated?