Each one links to a page on a website called Tubeteases(dot)com, and each page streams a Youtube video - usually females bouncing around in various states of undress.

Usually with spam like this, there's a financial incentive - however, I'm having a hard time working out what the motive is here. There are no clickable ads to make money from on the site - it's just page after page of miniaturised Youtube clips.

No popups, no flashing banners, no mousetraps.....nothing.

I thought I'd worked it out when I scrolled down the page and saw a large advert for a webcam site. Aha! Obviously the gimmick is luring you to the above video site then get you to pay up for webcam access, right?

Well, not exactly...

...."Free"? Oh dear, this isn't going well. They don't even have the advert for the webcam site at the top of the page, it's stuffed down at the bottom somewhere so I can't even claim "in-your-face" advertising.

At the very bottom, I saw a set of weblinks to other sites - surely this is the gimmick then? Entice potential webmasters to pay up for links placed on-site? Well, as it turns out, no. Clicking the "free slots available" link simply takes you to a page offering a free link placement script.

Normally spam = profit. Here though, I can't see that this follows the usual pattern. Perhaps someone woke up feeling philanthropic and randomly decided the best course of action for Digg.com users was watching hundreds of postage-stamp sized clips of semi-naked females.

We can tell them off for spamming Digg though, so we've got them there...