Karrde

Displays thumbnails from Flickr based on the user/group/tag you provide.

Flickr Thumbnails Widget

Displays thumbnails from Flickr based on the user/group/tag you provide.

tatsuya

Flickr integration for wordpress plugin.
Latest source: http://github.com/fukata/wp-flickr-press/
Features
<ol>
<li>Insert flickr media in post.</li>
<li>Cache search results.</li>
<li>Default settings at insert flickr media.</li>
<li>Setting value a tag rel and class property.</li>
<li>Support the php safe mode.</li>
<li>Support post thumbnail.</li>
</ol>
Dependencies
<ol>
<li>php-curl http://php.net/manual/ja/book.curl.php</li>
</ol>
Issues
If you want to report bugs and wishes to find a following.
https://github.com/fukata/wp-flickr-press/issues

Flickr Thumbnails Widget vs wp-flickr-press