Raspberry Pi Webcam
Cam 1 | 320 | 480 | 640 | 800 | 1024 | 1280
Cam 2 | 320 | 480 | 640 | 800 | 1024 | 1280
Dual | 320 | 480 | 640 | 800 | 1024 | 1280

(If webcam is online Cam 1 should update every 20s and Cam 2 every 40s)
Current Time -

How it works
If there's no image at all the free hosting is probably to blame!