Lucas Milanez

This plugin generates an XML sitemap to Google News (https://support.google.com/news/publisher/answer/74288?hl=pt-BR) according to the settings made on the panel
Some features:
<ul>
<li>Set default values on a dedicated settings page</li>
<li>Set genre, access, language on per article basis</li>
<li>Exclude articles from the sitemap</li>
<li>Ping Webmaster Tools when sitemap is updated</li>
</ul>
If you find a bug or you have a feature request, feel free to mail the developer.
You can use the built in installer and upgrade, or you can install the plugin 
manually.

Sitemap Google News

Automatically generates a Google News Sitemap using the Google News Sitemap specification.

amoreno

This plugin show a configurable widget for each post with news from Google News about post tags and post categories. Any article will be opened as new tab or window. This plugin tries to engage users inside your blog more time and give to users additional useful information. 
More than 5 languages and 14 country editions.

Google News Widget

This plugin show a configurable widget for each post with news from Google News about post tags and post categories. Any article will be opened as new …

Sitemap Google News vs Google News Widget