Announcing Slashdot Subscriptions: "Slashdot is about to start accepting new ad formats. The large ads that you see on many other sites are coming here. We really don't have an option: these are what advertisers want, and if we don't provide them, we won't be around much longer. But we want to give you an option to see Slashdot without these ads. Second, you need to understand that Slashdot readers fall into a variety of types, and charging the same flat fee just isn't possible."

Update (by Olivier): I think it's the first subscription I see that's sold by CPM (cost per thousand, the same way some ads are sold to advertisers).

03/06/02 update: Slashdot Ad Free: The Worst Subscription Service Ever Launched.