Maybe, says The Register. They’re calling it a “Google-NACK” (NACK = Negative ACKnowledgement), and it happens when Google tells you there are thousands of results for a search query, but fails to return those results. Seth Finkelstein argues that this is happening because ofproblems with Google’s anti-spam software. Greg Notess has this and other Google oddities on his Google Inconsistencies page.