How badly does Google want to keep under wraps a mysterious project taking shape on a barge in San Francisco Bay? Badly enough to require U.S. government officials to sign confidentiality agreements.2. Pink Underwing Moth Caterpillar.
3. Nightmare fuel.
4. Amazon's Kindle MatchBook feature is now active. Simply sign in and you'll get a list of books you can download for $3 or less based on your purchasing history.