The document discusses various social media tools for aggregating and sharing content online. It describes how RSS feeds work to push information to users, and lists Flickr, YouTube, SlideShare and Delicious as platforms for sharing photos, videos, presentations and bookmarks. Specific tips are provided for using tags on Flickr to increase discovery of photos, and how creating engaging content on YouTube can enable viral marketing. The summary concludes by noting how planning multimedia content on various social networks can create new resources and push traffic back to a main website.