Pinterest is a visually, discriminating version of Delicious.com, and Stumbleupon. I pick out a relevant image on the article's page, tag it and attach a brief comment/opinion of my own. I use the image to attract your attention to the information and the article.
I know that's not exactly what Pinterest intended but it works. Most people put up a collage of clothes, artwork, jewelry, photos, fashion, food, travel, movies and music images. You know, lifestyle.
Just look at the Pinterest category list. There is no category for business, the economy, globalization, philosophy, history, politics, careers and jobs, or any of my board titles. Pinterest has self-created its own limitations because it focuses on the image as an end unto itself rather than the means, conduit and connection to an even greater end... the source of the image and attached link.
I connected my Facebook profile to Pinterest so that all my pins post to FB. I have had, in just two days, several people comment and repin a number of pins. Now that is cool because nobody comments on my blog posts, except for the occasional spamer.
Check out my Pinterest boards on Career Tools, Global Economy, Working Wisdom and Culture.
You may get addicted too!