In /wp-includes/category-template.php, go to line 374, and change it to: $rel = ( is_object($wp_rewrite) && $wp_rewrite->using_permalinks() ) ? ' rel="tag nofollow"' : '';
Then, for extra credit, make sure your robots.txt includes:
Code:
User-agent: *
Disallow: /tag/
Tags can be user friendly ... they give another way to navigate through posts across the blog chronology. They can help a user figure out what topics are more and less important to a blog quickly. And because the 'cloud' is compact, you can have more of them, letting readers drill down beyond what makes sense for categories. Example: I have an optics category, and a bokeh tag. Plus they can intersect: I have Rockies and Cascades categories, and a Columbia River tag.
But if there's any truth to the common idea that lots of duplicate content is a bad thing, preventing more copies of the same posts from being exposed to the search engines over and over again is probably a good thing. Also, if you link back to earlier posts - which seems like a good idea in the age of rss scraping - these links will carry more weight if you don't dilute them with 50 or 75 tag links on the same page. |
