The URL of my posts has the publication date and slugged title, but how can I best show google search users that an article has been updated since its original publication?
I was considering devoting a few characters of the meta description (e.g. "updated 2013-Aug-1), or doing so under the first h1 tag. I don't want to hurt the seo value of my site, but I also want to let users know that articles have been substantially updated since their publication.
Is there a better way to do this?