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Placing something like this in your .htaccess file will redirect every page on your site without a "/" to one with a "/" without having to specify over 3k URLs individually. RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_URI} !(.)/$ RewriteRule ^(.)$ http://example.com/$1/ [L,R=301]

When you say it did not fix them, do you mean that the 301 was not working, or that the 404s did not go away in the GWT report? You will not see an immediate change in GWT for those errors.  They may take 30-90 days to clear out.  If you have them fixed, you can mark them as such and then take the error out of your console. As a part of the SEO Membership, check out the SEOMoz report for some option.  I have used Screaming Frog SEO spider with some success to look through my site and find random links. P

You bet.  Just to be clear, I was talking about pulling the content from the page in some automated fashion into the title.  Finding elements from each page that should be in variables and then inserting them into the title, description and H1 in a way that you can make each page unique. You would need to make a final call on if you think the content is unique enough.  We had 5000 locations that we used data in the database to make 5000 unique pages as each location has the name of the business, city, state, zip, address phone number etc. We are now working to have user generated content/comments/reviews on each page so that each one page becomes more unique and more useful over time. Having a IT guy who appreciates SEO is key for this and for the URLs.  I would talk first about how he organizes the data in his system and then how this translates into the URL.  You can then then just have him rename the URL using the same logic. Show him some data on click thru rates on more readable URLs and how Google prefers not to spider them.  I work to educate the IT guys as much as I can without making it sound like I know it all.

Thanks Carlos. I figured as much, but thought I'd take advantage of the Q&A here at SEOmoz.