If you’re looking for an alternate means of telling Twitter’s Tweet Button whom to attribute a tweet to, you can use rel="me" as the documentation suggests.
All you have to do is add your Twitter profile to you page’s <head> section as a linked relationship:
<link rel="me" href="http://twitter.com/tcorp" />
The Tweet Button can now automatically detect the Twitter profile of the author and thus attribute the tweet to that account.
The following Tweet Button doesn’t have a data-via value and uses the rel=”me” code from the head of the page to attribute the tweet to “@TCorp”:
<a href="http://twitter.com/share" data-url="http://0xtc.com/2010/09/17/twitters-tweet-button-and-rel-me.xhtml" data-text="Twitter's Tweet Button and rel="me"" data-lang="en" data-count="vertical" data-counturl="http://0xtc.com/2010/09/17/twitters-tweet-button-and-rel-me.xhtml" rel="nofollow" class="twitter-share-button">Tweet</a>
Resulting in:
