Connotea

Connotea is a free online reference management service for scientists, researchers, and clinicians, created in December 2004 by Nature Publishing Group.

Five reasons to use Connotea:

  • Save and organize links to your references;
  • Easily share references with colleagues;
  • Access references from any computer;
  • One click is all it takes;
  • Easy to use. Start creating your library today.

More info at: http://www.connotea.org/about

Icon: 
Code:
$links['connotea'] = array( 'name' => 'Connotea', 'description' => t('Save this page on Connotea'), 'link' => 'http://www.connotea.org/add?uri=<raw-encoded-url>&title=<raw-encoded-title>', );
Example:
Add to ListOptions