WireDot Labs

ghutchis

This WordPress plugin will help integrate your Gallery (gallery.sf.net) albums and photos into your WP blog.
This plug was inspired by the MT plugin GalleryLink and the Blosxom galleryref plugin. Please make sure to edit the WPG_GALLERY_BASE and WPG_ALBUM_BASE bits below or use the WP-Plugin Manager.
It also uses bits for QuickLinks in the post editor from the Edit Button Framework: http://www.asymptomatic.net/wp-hacks
album/photo => 
 <a href="" rel="nofollow ugc"></a>
The tag will be the “thumbnail” size.
You can also use a direct PHP function call if you prefer:

The direct function call can also handle link and image CSS classes, etc.

WP Gallery

Replace WP Gallery tags with links and images in your Gallery albums.

Konstantin Kovshenin

Use this widget to display your Flickr photos in your sidebar, via a Flickr username or a Flickr RSS feed URL.

Quick Flickr Widget

Display your Flickr photos in your sidebar.

WP Gallery vs Quick Flickr Widget