What could you do if you were spidering two billion web pages per day? Whatever your answer is to that hypothetical, you might as well do it now. The 80legs platform lets you write your own web crawler and sell your apps to users (our 80legs API profile). And if you can build it fast, there's an 80legs contest looking for your entry.
Once the mouthpiece and aggregator of the blogosphere, Technorati lost its luster long ago. And now it's lost its API, too. The developer page promises a new API but also makes one thing clear: the old one is gone.