Dana Ross

Widget that displays on your WordPress search results page with similar items from your Flickr, YouTube, and Twitter feeds.
For example, someone searching for “cat” on your site might see Flickr photos you’ve tagged with “cat”, or that funny YouTube video you took of your kitty the other day.
Currently searches: * Flickr * Twitter * YouTube
…or any combination of the above!
View the announcement for this plugin at http://www.slideshare.net/fvcp/wpexternalsearch

Dave’s External Search

Widget that displays on your WordPress search results page with similar items from your Flickr, YouTube, and Twitter feeds.

Robert Peake

Robert

Embeds a responsive slideshow of Flickr images from any album or photoset
Shortcodes are of the format: <code>[fshow url=https://flic.kr/s/aHsiP3Xyxx]</code> or <code>[fshow photosetid=72157627847553181]</code>
The default parameters for api key, username, user_id and photosetid can have values set using the plugin options page that will then be used by default whenever they are omitted from the shortcode.

Responsive Flickr Slideshow

Does the trick

Embeds a responsive slideshow of Flickr images from any album or photoset

Dave’s External Search vs Responsive Flickr Slideshow