Today I noticed that Twitter urls containing the hashbang are correctly counted by the Tweet button, but the same url without it are not counted at all.
Example: This url http://twitter.com/#!/smashingmag/statuses/40319552151625728 is counted by the Tweet button as 100K+ but http://twitter.com/smashingmag/statuses/40319552151625728 is counted as 0. In the first case, the url was added by the user using a bookmarklet, and in the second the url was added via a user's twitter favorites rss feed. Here's what generates the tweet button: <script class='twitter-share-js' src='http://platform.twitter.com/ widgets.js' type='text/javascript'></script> <a data-url='theUrl' data-text='theTweet' data- related='myAppTwitterAcct' data-counturl='theUrlAgain' href='http:// twitter.com/share' class='twitter-share-button'>Tweet</a> Thanks! -- Twitter developer documentation and resources: http://dev.twitter.com/doc API updates via Twitter: http://twitter.com/twitterapi Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list Change your membership to this group: http://groups.google.com/group/twitter-development-talk