Media Clone extends the Media module to allow for cloning media elements from one node to another. A new tab appears in the media browser when you "Select Media" on the edit page of a given node. This new tab allows you to quickly search for any node on the site, and clone all of its media content directly to the node being edited.
Socialvote module allows to carry on polls on the principle of Battle of brands. In contrast to ordinary polls in that case user must confirm on his wall (vk, or facebook) the publication of proposed comment. His comment will contain the URL to questioning page. So you can advertise your site by viral advertising to conducting provocative poll.