Twitter style #hashtags are the girders that allow voting advice to travel down the information highway. They identify ballot choices, allowing advice that is needed to find its destination, while other advice flows right on by, unintrusive and invisible.The #hashtags need to be unique, so they do not conflict with each other, and they need to be divided into namespaces, so they are easy to construct without fear of conflict with other hashtags.
Receiving and Filtering Advice
Voting advice is given in the form of a blog post, or advice tweet, that is delivered through an advice stream. The technology that makes such a stream possible is known as an RSS feed (a source that provides information to subscribers).