This WordPress plugin pulls in Flickr photosets as albums into a WordPress site. This plugin also adds a new Photos tab to the admin post screen, which will allow you to easily insert a photo into your blog post with just a couple clicks.
Photo album implementation on a blog, generated by the plugin based on Flickr photosets
Media bar icon
The Flickr media bar, which allows you to easily blog your Flickr photos
Choosing a Flickr photo to insert
Popup window that allows you to choose a Flickr photo to insert into a blog post
The options available for inserting a photo into a blog post
Older versions of WordPress (2.3 and older)