I had a great time presenting at the Seattle WordPress meetup, where I am also active as a co-organizer. Below you will find the keynote slideshow from it: Your WordPress Site as a Hub for Connections and Conversation. And below that is links to the plugins I mentioned as well.
If you missed this event, I do have an extended version of this free workshop in Seattle on September 9th, which also includes a section on content.
Here is a list of plugins and other resources I mentioned during this presentation.