The 50 most recent pix uploaded to livejournal, updated every 60 seconds. Some really great stuff. Occasionally NSFW, occasionally shocking, never a dull 60 sec.
You might not get through the current 50 before the next bunch pops up and you get sucked further in.
Warnings: Addictive, may not be work safe, may be offensive, may be extremely wierd or may be plain ol’ mundane.
PS: The person doing this must have oodles of bandwidth. Just in case not, though, this is cool enough to warrant a click or two on the adds.