Brandon Moeller

This plugin allows publishers to better control the width of photos that use the WordPress caption shortcode feature, when that content is displayed in RSS feed readers like Google Reader, as displayed on small-screen mobile devices.
This plugin accomplishes the same thing that adjusting the “function img_caption_shortcode” code in includes/media.php would, but allows the user to automatically update WordPress without worrying about losing these changes.
It is the author’s hope that in future releases of WordPress (post 3.3), this plugin will prove unnecessary if (hard-working, responsive-minded) WordPress core developers decide to include the fix in newer versions of the awesome great open source software we have all come to love.
The code for this plugin was inspired by code found on this page of the codex: 
<a href="https://codex.wordpress.org/Function_Reference/add_filter" rel="nofollow ugc">https://codex.wordpress.org/Function_Reference/add_filter</a>
Read more about RSS Responsive Caption on the author’s website here: 
<a href="http://brandonmoeller.com/blog/2011/12/18/rss-responsive-caption/" rel="nofollow ugc">http://brandonmoeller.com/blog/2011/12/18/rss-responsive-caption/</a>

RSS Responsive Caption

Improves WordPress caption elements so captioned images in RSS feeds responsively adjust to fit within Google Reader’s screen on Android devices.

Mathieu Chartier

For English people
WP Filter & Combine RSS Feeds works in multilingual and multisite 
WP Filter & Combine RSS Feeds allows you to view all publications from one or more RSS feeds with or without a search filter. If multiple feeds are provided, the plugin combines the data to make one feed. 
Many settings allow you to customize the experience and customize the final display of RSS feeds. You can also choose a CSS template or create your own with the CSS selectors provided in the documentation.
En français
WP Filter & Combine RSS Feeds fonctionne en multilingue et en multisite 
WP Filter & Combine RSS Feeds permet d’afficher toutes publications d’un ou plusieurs flux RSS avec ou sans filtre de recherche. Si plusieurs feeds sont fournis, le plugin combine les données pour ne faire plus qu’un flux. 
De nombreux paramètres permettent de personnaliser l’expérience et de personnaliser l’affichage final des flux RSS. Vous pouvez également choisir un template CSS ou créer le vôtre avec les sélecteurs CSS fournis dans la documentation.

WP Filter & Combine RSS Feeds

This plugin works exceptionally well. Imported more than 1000 items within a minute. 

I was able to query and display the feed items as I please. The inbuilt shortcodes are awesome too.

Awesome.

WP Filter & Combine RSS Feeds is a plugin designed to manage or multiple RSS feeds with an integrated search engine. The extension is multi-site c …

RSS Responsive Caption vs WP Filter & Combine RSS Feeds