Finds all external links on a web page and adds an "external" icon to the link indicating it will take the user offsite or a "mail" icon for mailto: links.
With the Protected Node module, users can restrict access to a node with a password they provide when creating the node (or a site wide password or a per node type password).
Flickr Rippr reads flickr.com for users latest public photos, and turns these into content (nodes) on your drupal website.
You need only publish to flickr.com, and they will automagically appear on your drupal website after each cron run. Join this up with the Views module and make photo galleries, blocks, and other awesomes.