Jeff Jarvis has some examples of creative uses of crowdsourcing.
Kichus has great advice on how to analyze and reduce the bounce rate on your website.
Conversational Marketing has an SEO workflow that works. Worth a read, especially if you are planning on launching (or re-launching) a site soon.
The Red Cross has been using social media and web 2.0 technologies to get information to flood victims in the midwest. Very innovative:
The Red Cross is using Utterz to post audio reports from the field, Flickr for photos and YouTube for videos, as well as a Slide-powered slideshow widget that allows anyone to upload photos of disaster areas. The site also features a Google Maps mashup that depicts the surprisingly large number of relief operations currently being run by the American Red Cross.
Here is the site they’re using.