Martin Moore's discussion around the death of Ian Tomlinson and the subsequent investigation and unearthing of footage by the Guardian raises some interesting points about the place 'old media (for want of a better phrase) have today:
"Would the 'truth' surrounding Mr Tomlinson's death have come to light had it not been sought out by journalists, and then published as the lead story in the Guardian? Perhaps, but I don't think so."
Then there's the Damian McBride email scandal that may have broken in the blogosphere but still needed the traditional media to completely take it into the scandal it has now become. Would McBride have resigned if the accusations had just appeared on Guido Fawkes' blog and nowhere else ?
But, by the same token, these stories wouldn't have become as big had it not been for the work of social media, with videos of Tomlinson and alleged police brutality at the G20 protests circulating around the internet. And in the midst of this, the Guardian showed how a mainstream media's website spread this using social media tactics.
Then, on a lighter news story, Pete Cashmore muses at Mashable on Ashton Kutcher's passing of the 1 million Twitter followers mark:
"And yet this assumes that social media needs mainstream media to justify its existence: that without its blessing social media is not confirmed. But mainstream media is increasingly becoming an echo of social media, allowing YouTube’s masses to define what matters (Susan Boyle, the Domino’s Pizza scandal) and mirroring that public sentiment.
For now, Twitter needs mainstream media more than mainstream media needs Twitter. But Ashton has an audience of 1 million at his fingertips: how much longer will the talent need its mainstream middleman?"
Is this a case of the tail wagging the dog or the dog wagging the tail? Or just a case of having a double-headed, double-tailed canine?
Chris Applegate makes an interesting comparion between the coverage of Hillsborough twenty years ago and the coverage of the G20.
Back in the 1980s, it was much easier for the police (with a little help from The Sun) to get out their version, deflecting blame and smearing the innocent. Today, the police's account of the G20 was quickly contradicted by the wealth of material available. One wonders if the families of the 96 would still be campaigning for justice if Hillsborough had happened today.
At the moment, both social media and traditional media are probably wagging each other. The footage of Ian Tomlinson would probably have gained traction without the Guardian, but the newspaper's work meant it was disseminated much quicker. McBride's emails may well have just stuck to the Westminster gossip blogs if the papers hadn't run with it .
Certainly with significant news stories that originate in niche communities, then it probably does require a helping hand from the traditional press to take it that step further. But the lines are getting increasingly narrow between the two.
If you have an interest in an area, mainstream or niche, you'll probably hear the news before it makes it to the mainstream media, but it's also never been easier for journalists to keep tabs on what's getting the internet buzzing - and if that's beyond the usual geek or early adopter buzz, there's a good chance it's a story that more people will be interested in.
And then you've got somebody like Susan Boyle, who was on a primetime show like Britain's Got Talent and got the traditional media and the social media talking, and social media helped turn Susan Boyle into a global superstar, which, in turn, became a story for traditional media.
My brain hurts.
Both sides still need each other still, but it remains to be seen for how much longer. Journalists are still gatekeepers, sorting the wheat from the chaff in the internet world, albeit with no small amount of help from places like Twitter. And when they do manage to come together, like the Guardian's excellent work with the Ian Tomlinson story, then it can really take off.
And one final note that's probably significant in some small way. When news broke that Tomlinson didn't die of a heart attack, as was originally though, thenews was all over Twitter. But the most retweeted user on this was Krishnan Guru-Murthy, the Channel 4 News anchor.
Like I say, both sides still need each other.
 Ok, this is being very simplistic. No blog is an island and that's one of the joys of the web. If people like what's blogged or Tweeted, it soon finds its way onto other blogs.
 It's worth remembering that while the likes of Gudio and Iain Dale are seen as influential within Westminster, once you leave this behind, recognition of their names probably diminishes. You can be interested in politics without having heard of either, especially if you don't spend a great deal of time reading blogs. There is a world beyond the blogs.