Daily Sale offers the Logitech C170 Universal USB Webcam, model no. 960-000880, for $9 with free shipping. That's $1 under our open-box mention from last month and the lowest total price we've seen. (It's a current low by $8.) It features a built-in microphone, 640x480 resolution, and films up to 30 frames per second.
Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily.
Update: Specs corrected.