Also, consider this: you share an article with your 300 friends on Facebook, liking it before you do. Your friends see the article, and of the first 20, 4 of th

Also, consider this: you share an article with your 300 friends on Facebook, liking it before you do. Your friends see the article, and of the first 20, 4 of them also like it. The next one of your friends will to see the article will have at least one friend (you!) who liked it, up to five. Not bad that way. If you're randomly browsing, of course you're going to find fewer articles that your friends have liked -- it's random!