In the demo of jetpack, when you use the tweet tool in the Sharing Buttons, it adds "via@twitterhandle"
I don't have that addition on mine, and I can't figure out how to add it. I don't know if it's pulling the handle from somewhere in the WP settings, or what. I've been googling for hours trying to figure out the answer, but I can't find a good answer on how to do this.
I tried creating my own twitter button wiht the "add new service" option, as someone suggested, but that's giving me even more issues.
Any help would really be appreciated!