foter

Foter is the easiest and fastest way to add Creative Commons photos to your blog. We find and host millions of photos from many online sources and make them available to be included in your blog posts.
This plugin lets you seach, manage and add Creative Commons photos to your blog posts in a very simple way.
Some of the features:
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Image resizing: flexibility and preview feature
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Image download: you can use plugin or simply download image from foter.com website
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Attribution info: all attribution information is automatically added to the photo, so you don’t need to add it manually
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Search photos: you can search photos by tags or keywords
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Speed: very fast and easy to use
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Website: <a href="http://foter.com/" title="Free Stock Photos Foter.com" rel="nofollow ugc">Free Stock Photos Foter.com</a>

Free Stock Photos Foter

This plugin lets you easily search, manage and add free photos (more than 180 mln of them) to your blog posts.

CodeAndReload

This plugin provides the ability to tag media in the media library as having a Creative Commons (CC) license. 
The license shows up on the attachment page and is optimized for search engines (SEO) using RDFa metadata. 
It optionally extends the search form to allow searches for CC-tagged media. It can display a text link 
to the license, an image link to the license, or both.
<h3>Support</h3>
Technical support for this plugin will be provided via the WordPress plugin forum. Additional support may be 
available at <a href="http://www.codeandreload.com/wp-plugins/creative-commons-tagger/" title="Creative Commons Media
Tagger at Code and Reload">plugin’s homepage</a>.

Creative Commons Media Tagger

Allows tagging of media as having a Creative Commons license. License info shows as link and/or image and is searchable. Search engine optimized.

Free Stock Photos Foter vs Creative Commons Media Tagger