Microdata allows web-masters to create custom elements and give them attributes / meanings. The introduction of Microdata has provided a big boost for those search marketers that have managed the implementation. WordPress users get amazing widget plugins for everything and review widgets are available for WordPress with great features.
So, here in this post I have compiled a list of some of the best free WordPress microdata widgets for your wordpress blogs. While compiling this list, it’s always a possibility that I missed some other great resources. Feel free to share it with us. You may be interested in the following posts: Free WordPress Contemporary Themes, Generator Plugins for WordPress, WordPress Editorial Premium Themes and WordPress Email Marketing Widgets.
1. Rich Contact Widget
This contact widget comes with microdatas & micro formats markup, so that search engines can use it in their search results. They can help display contact information about your business or yourself below your website in search results, and even a map with your location, to improve your local SEO.

2. WP Social SEO Booster
WP Social SEO Booster adds Facebook Open Graph, Twitter Card and Google Rich Snippets (Microdata / schema.org) to your site to boost your sites search engine visibility.

3. All In One Schema.org Rich Snippets
It is basically a short summary of your page in the search results of Google, Yahoo, Bing and sometimes in the News feed of Facebook in nice format with star ratings, author photo, image, etc.

4. LBC Local SEO
LBC Local SEO displays business information in the way Google and other search engines need them. Displays essential information for your customers about your business. Information that help them to find and contact you quickly.

5. SZ – Video for WordPress
Plugin per l’inserimento di un player video all’interno di post o pagine WordPress tramite l’utilizzo di semplici shortcodes.

6. Local Business SEO
The Local Business Seo plugin informs all search engines that your website is specifically a type of business located in the city you are in.

7. Easy Recipe
EasyRecipe makes it easy to enter, format and print recipes, as well as automagically doing the geeky stuff needed for Google’s Recipe View.

8. Local Search SEO Contact Page
Local Search SEO Contact Page displays microdata formatted business information for both Schema.org and hCard formats (at the same time!) in a customizable fashion.

9. Credit Tracker
The effective use of stock images and photography on your website and blog can have a massive impact on the number of visits which your site receives, and the positive response which visitors have to your sites content.

10. Software Specs
Add software specs and Software Application microdata to your downloads when using Easy Digital Downloads plugin.

11. Add Meta Tags
Add basic meta tags and also Opengraph, Schema.org Microdata, Twitter Cards and Dublin Core metadata to optimize your web site for better SEO.

12. WP YouTube Lyte
WP YouTube Lyte allows you to “lazy load” your video’s, by inserting responsive “Lite YouTube Embeds”.

Rich Contact Widget