Social web services like Flickr and del.icio.us provide new ways to work and share data with others. However, they also mean that your data is spread around dozens of services, companies and servers.
Midgard can be set up to act as your personal information hub, synchronizing your content with the various Web 2.0 services and displaying them in your own style as a mashup. This means your content can also be secure in a server you control.
Clipping is a handy way to collect important slides you want to go back to later.