The DynamicFeed widget needs a Google API. Sign up for one here: http://code.google.com/apis/ajaxfeeds/signup.html
The LatestTweets widget needs the twitter username set up in order to work.
The PhotobucketSlideshow widget needs the album url set up in order to work.
The FlickrPhotostream widget needs the Flickr ID set up in order to work.
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