I've started using tags for one reason, and that's indexing. Tags provide one more vehicle to link to a blog that is buried in the site somewhere. A tag will provide a link from the home page of your blog site to the blog entry you wrote months, perhaps years ago!

If a visitor was reading your latest entry on 'widgets' and wanted to read more about widgets, then certainly the tag will be helpful to the visitor, however, IMHO, the greatest value of tagging are the linking benefits.

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