Adam Penenberg at Wired.com writes about the WSJ's loss of respect and links on the Internet due to their desire to make content available only to paid subscribers. He notes how the value of their long-time content will therefore decline as information seekers are increasingly trained to use the web.

The business model lacks any foresight or recognition of value. The visitors generated to the online site through search engines is practically nothing compared to their competition, lowering the value and number of ads they can run on the site. Paid subscribers will be hard to come by without traffic and even if they do get a few, the value of 1000 times as many visitors through free referrals is far higher than the $80 per year they earn for a few subscribers.

Don't make the same mistake - give away for free as much content as you possibly can, the value of a link and thousands of visitors far outweighs the value of a few paid subscribers.