Thanks for the clarification in regard to Flash support by the various destinations and AddThis. That definitely looks interesting.

As with new feed posts, we fully agree that in those environments the feeds are the best place for engagement and spread.

We had no part in the development of this widget, so we do not know what thought process went into it. Unfortunately, the widget is not Flash and therefor could not take advantage of the items you pointed out.

Regardless of whether it is iFrame or Flash, the biggest miss we saw (which has nothing to do with AddThis) is the dead-end site that they were driving users to.

Just wanted to clarify… with widget support within AddThis, we still very much support sharing to iGoogle. (http://addthis.com/help/embedded-content#destinations) For whatever reason, this publisher decided to use Google Bookmarks instead.

A little background on Facebook apps… the over arching trend throughout social networks has been to really focus on the news feeds. That’s where people are looking to see what’s going on in the life of their collective network versus going to people’s profiles. Thus, the news feed is what performs best in terms of getting content shared and re-shared the most.

For any developers that are going through the widget development process and looking to integrate AddThis, we’ve put together some example implementations and posted the corresponding code. Hopefully, this will make the development process easier for everyone. – http://addthis.com/help/flash-examples

We also have a tech support forum dedicated to this topic.
http://addthis.com/forum/viewforum.php?f=13&sid=7f5d6b43a51b3c3ad7016c1d4385324f

If anyone has any thoughts, questions or concerns, drop a note on the forum. We have an amazing support team. Also, feel free to e-mail me personally – justin@clearspring.com.