Spotted via Google Blogoscoped, Google Content Blocker is a parody of a pretend Google feature that blocks editorial content on pages, leaving only ads. But hey, not just Google ads. Any ads, in order not to be evil.
Meanwhile, spotted via Threadwatch is Marissa (Beta), a fake blog for Google's Marissa Mayer, director of consumer web products. Marissa often gets called out to defend Google if it takes heat for some product features such as Google AutoLink.
We'll see if that lasts longer than the fake blog created for Google cofounders Larry Page and Sergey Brin back in 2003 :)