Online-media syndication company Pluck has developed an application for web publishers that will allow them to link their websites to social networks like Facebook and Myspace.  If you post a blog entry on USA Today, one of their clients, it will automatically post your entry on your social network profile along with a link back to the article.  I love this concept.  It’s a great way to expose content to an audience linked to at least one person who felt strongly enough about the content to post a blog entry.  Plus it will encourage people to post blog entries so they can show all their MySpace friends how smart they are.