Thoughts on the Wibiya Toolbar

I just installed the Wibiya toolbar on TuDiabetes. You can see it in the footer of the site on this screenshot:

Seems like a great way to integrate the other social media components into your network on Ning. We've only added so far the following applications:

• Twitter: pointing to @tudiabetes
• Facebook Fan Page: pointing to http://www.facebook.com/DiabetesHF
• YouTube videos: pointing to http://www.youtube.com/DiabetesHands
• Navigation links (to 4 Note pages that serve as a content container of valuable links, etc.)
• Share
• Notifications

I was curious as to who else is using it, what apps have you added to it and why?

Update (Jan. 12, 2009): The Wibiya bar was shortlived. Due to privacy concerns expressed by some members of TuDiabetes, we removed it.