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Some of these are quite obvious to current webmasters but should start a discussion about proper SEO URLs based on the type of content a publisher puts out. A news-heavy site shouldn’t ditch date-based URLs just because this article says so. Dates in the URL could be incorporated sparingly and strategically in a news category but nowhere else, e.g. press releases. Some CMS engines like Joomla still have mechanical ID numbers in the URLs even when the SEF routines are enabled. Though somewhat ugly, it actually keeps the site from returning a 404 error even if the alias to the article changes with the title.
Story: Top 10 Fatal URL Design Mistakes