Yet another Digg clone, targeted at a small slice of the news market. Isn't Tip'd exactly the kind of me-too company the bursting of the bubble is supposed to crowd out? VentureBeat, strangely, calls the site's launch "timely." And yet the best times for financial-information sites, in terms of having matter to cover, are the worst times for their endemic advertisers. Wall Street mayhem makes for lots of pageviews at the same time it makes those pages harder to fill with ads. Tip'd may well find a niche audience for market obsessives. But a niche audience is not a big business.Why, then, are so many publications writing about Tip'd? Let me spell it out for you: The community director of Tip'd, Muhammad Saleem, is a top user on Digg. His heavy usage means that his votes tend to carry more weight on the site. Would some Web writers cover new venture in the hopes that he might feel inclined to Digg their stories down the road? Stranger things have happened.

Yesterday, Digg went down for an hour in the middle of the day. Initially we thought it was an unplanned outage, but it turns out that a number of changes were made to the algorithm that controls which stories are "promoted" to the front page. The changes have started a mini-revolt among the top submitters reminiscent of the community uprising over Digg's deletion of HD-DVD unlock codes last year. We talked to several top diggers to find out what changed, why they're upset, and we have our own theory for why the changes were made.

You already know how Digg works. Post a funny picture of Kevin Rose or a tribute to Apple's greatness and there you have it — you're on the front page. You're not wrong. But social media maven Muhammad Saleem says there's actually a little science to Digg as well. In a post on Search Engine Land, Saleem explains how Digg's algorithm does and doesn't work. He should know. Most of his recent Digg submissions have garnered several hundred votes. Good stuff, only it runs way too long. Here's our slimmed-down version.