You can download the slides in PDF format here:
We talked a lot about different libraries or modules we've used. Here are links to those resources:
: A Drupal module for flagging items. We've used this to add items to a personal playlist, a schedule, or to vote for presentations.
This is by no means a comprehensive list of resources. The technology is changing so fast that there are probably better alternatives to some of these tools already. The important thing here is that it can be simple to incorporate more advanced interactions into your website and that using the right tools can make that happen in a way that will work for all users.