So a recent article by the Sherpa folks suggests that as many as 50 million RSS users do not know that they are using RSS. That’s because MyYahoo and MyMSN are in fact RSS readers, and people are adding content options not realizing that they have joined the Next Big Thing.

“So what” you say? RSS is awesome — your content is spared the hurly burly of email in-box competition — the spam filters, the preview panes, the multiple clients, the horror.

The easiest way to get into RSS is by using blog software. Sierra Club’s new daily feature, Compass, is a splendid example.