Duplicate content has been an important topic for Google and other search engines and for webmasters for a while. One of the tools introduced to allow webmasters to identify instances of duplicate content was the rel=canonical tag first announced and supported by Google, Yahoo, and Bing in February 2009. Here is Matt Cutts blog post about the announcement: Learn about the Canonical Link Element in 5 minutes.
Four years later, duplicate content has continued to be a hot topic. And there are still plenty of questions around about how and when to use the rel=canonical tag. Just a few weeks ago there was a (good) article on the topic on the seomoz website outlining some of the confusion. Here is a link to that article: Rel=Confused?
So, for this week's poll question I thought I'd ask if you use the canonical tag on your websites? Besides sharing whether or not you use the tag, I'd be interested understanding the philosophy folks follow around the use of the tag (if you have one), and when you use the rel=canonical tag versus redirects.
Michael