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Adds the <a href="http://visitmix.com/Lab/oomph" rel="nofollow ugc">Oomph Microformats toolkit</a>‘s microformat overlay to any WordPress-generated pages (as long as the page has a <a href="http://microformats.org/" rel="nofollow ugc">microformat</a> in it, of course).
This plugin is pretty idiotic (by which I mean brain-dead simple), but it does enable anyone to fully microformat-enable their blog with purely point-and-click operations. It’s recommended that you start with <a href="https://wordpress.org/extend/themes/tags/microformats" title="Check out the various WordPress themes that support microformats out of the box!" rel="ugc">a WordPress theme that already has built-in support for microformats</a>, and then add this plugin to the mix.
Alternatively, if you are comfortable with template code, you can write your own microformats into your custom template. Learn more <a href="https://codex.wordpress.org/Blog_Design_and_Layout" rel="nofollow ugc">about authoring and customizing WordPress templates at the Codex</a>.
Please note that all this plugin does is adds the Oomph toolkit’s functionality to a page. What that means is that the plugin has all the features and benefits, as well as all the limitations, of the Oomph toolkit. Most notably, the plugin only recognizes the <a href="http://microformats.org/wiki/hcard" rel="nofollow ugc">hCard</a> and <a href="http://microformats.org/wiki/hcalendar" rel="nofollow ugc">hCalendar</a> microformats for now.
If you want to send patches to improve this plugin, <a href="http://maymay.net/blog/2008/11/11/wp-oomph-add-the-oomph-microformat-overlay-to-your-wordpress-blog/" title="I welcome your input and code submissions!" rel="nofollow ugc">please do</a>.

WP-Oomph

Adds the Oomph Microformats toolkit's microformat overlay to any WordPress-generated pages (as long as the page has a microformat in it, of cours …

Matthias Pfefferle

David Shanske

IndieWeb

It is only a very basic implementation, because not every element is accessible through actions or filters. It is better to use a theme that supports <a href="http://microformats.org/wiki/microformats2" rel="nofollow ugc">Microformats 2</a> fully.

Microformats 2

Enhances your WordPress theme with Microformats 2 classes.

WP-Oomph vs Microformats 2