The social-media expert Beth Kanter is frustrated with the popular news networking site Digg.

Digg — which allows readers to highlight news article, blog posts, and videos that they find interesting and recommend them to other people — has become a highly influential traffic source for many news organizations and blog writers.

When an article gets a high number of “diggs” — or votes — from readers, it rises in prominence on the Digg Web site.

The higher it rises, the more likely it is to get noticed by other Digg viewers.

Stories about nonprofit groups and philanthropy tend to score low on the site, in part because there is no category on Digg for such stories.

Digg uses broad categories — and many philanthropy stories end up getting tagged as “business and finance.”

Ms. Kanter, on Beth’s Blog, writes of a campaign to persuade Digg’s creators to create a category called “Nonprofit and Social Change.” By doing so, she argues that those who care about these topics will be able to find, and Digg stories.

Appropriately enough, the article now appears on Digg.