Interesting, but not helpful for people who access wsj.com articles via blogs
If you don't have a Wall Street Journal subscription, you must have seen articles that look like this (most of them are fully indexed by search engines, so you can see them in the search results):
You're able to read a preview, but to see the full article, you need to pay $99 for an annual subscription. For recent articles, you can do a search on Google News and read the whole article from there: Google has a deal with Wall Street Journal so that all the articles can be read for free. It's called first click free: "The very first article view by a Google News user (identifiable by referrer) doesn't require subscription. While the first article can be seen without subscribing, all clicks on the article page are trapped. This means that if users click anywhere else on that page, they will be prompted to sign up."