I wrote recently about how the economics of blogging kind of sucks. But I neglected to mention the fine contribution to journalism and world knowledge that blogs represent. One of the great things about the blogosphere is the unique information that each blog provides. For example, today Apple announced some new machines. In the old days you’d just have to read about that in the newspaper. Today you can set up a feed reader or just bookmark a bunch of blogs and get really exciting, nearly identical, not-in-depth coverage of this same momentous news. Check it out from AllThingsD (see here), Alley Insider (see here), TechCrunch (see here), and VentureBeat (see here.) Lest you think that there are probably too many people covering the exact same non-news every day, remember that every blog has its own very unique value to add to the basic underlying non-news. VentureBeat, for example, used the opportunity to point out its own mistakes, saying that today’s news probably means there won’t be some big Apple event at the end of March, as it had predicted earlier. AllThingsD says it’s all about the recession. Alley Insider says Apple still needs a netbook, and predicts will see a multitouch tablet from Apple by end of year. Or consider the story about Jon Stewart covering Twitter on The Daily Show. The blogs are chasing each other’s tails on that one too, with VentureBeat offering this piece, TechCrunch offering this piece, GawkerWag offering this, and GigaOm offering this. No mystery why nobody is making any money at this.