Ever with there was a way to track popular news/blog posts by following Google Reader shared item feeds without, you know, subscribing to dozens of feeds? The big problem with link blogs and shared item feeds is that if you subscribe to a bunch, there's a pretty good chance you're going to wind up seeing the same articles over and over. ReadBurner makes it possible to track shared items from some of the blogosphere's opinion leaders without subscribing directly to their blogs.

Here's how it works. Developer Alexander Marktl has taken the shared item feeds from a number of well known bloggers.. ReadBurner examines those feeds and determines which items are being shared the most often. You can sort the list by Currently Popular, Popular This Week, Most Popular All Time, or Most Recent.

ReadBurner is still in pretty early Alpha testing. Up until yesterday the site didn't even have a registered domain. But if you're the sort of person that can't get enough of Techmeme and other news tracking sites, ReadBurner might be worth keeping an eye on.

[via Mashable]

If you believe the claims in an apparently "leaked" video from Google, there are a few updates headed Google Reader's way. More social features are coming, there will be a way for Reader to recommend feeds to users, and Google might add the ability to comment on shared items.

That last one caught the attention of Duncan Riley over at TechCrunch. The way he sees it, allowing users to share articles in a link blog style format already violates the copyright of blog and web site publishers by reproducing their work out of context (and devoid of any original advertising).

Of course, most web publishers have looked the other way so far, because nobody's making any money off of these link blogs, and while entire articles are being reprinted, there's clear attribution explaining where they came from and no way for users to add original content, thus making a link blog something less than a regular blog.

If Google adds the ability to comment on shared items, Riley suggests, then it will essentially be granting users the ability to publish their own blogs using content from others without permission.

Another way of looking at it is that few link blogs (Robert Scoble's included) have the readership of a popular web site like Engadget. If anything, when someone like Robert Scoble shares an occasional item from your feed, he's popularizing your brand and perhaps driving traffic back to your site. After all, he doesn't publish every article you've written, does he? And really, how different is a link blog from an feed reader? In both situations people are reading your content outside of the context of your blog -- because of the RSS feed you have provided them with.

What do you think? Is link blogging stealing? And should Google add a comment feature to Google Reader?

Tumblr is a new tumblelog service whose FAQs probably describe itself a nutshell the best: "To make a simple analogy: If blogs are journals, tumblelogs are scrapbooks." It has the look, feel and functionality of a stream-of-consciousness blog, instead of the typical structure and theme/agenda that the traditional blogging platform has (sidenote: can we really refer to an aspect of blogging as 'traditional' just yet?). Everything that doesn't fit in another online space or blogging platform is probably a sure-fire candidate for a tumblelog. I also like to think of it as a linkblog on steriods, offering easy linkage and embedding of video, pictures, conversations, quotes and more.

A carefully-chosen tool set reinforces this linkblog ideal, offering a streamlined experience that oozes the "everything you need, nothing you don't" philosophy. The signup process is dead-easy, and after choosing a theme and a few other settings, Tumblr offers a simple though eerily intelligent bookmarklet that does all the heavy lifting when sharing that Flickr pic or embedding a YouTube video.

For those who want some control over their tumblelog, Tumblr offers some key features above and beyond the simple point and click. Customization is present in just about all the right places. The themes are 100% editable, and the official Tumblr blog says even more themes are on their way, with a "hugely robust system" for really strutting your stuff. You can also chose to redirect your Tumblr blog to your own domain, with fairly simple instructions in the FAQs.

All in all this tumbellog/linkblog is a fairly simple concept with much greater implications, and Tumblr's executing is fantastic. I'm already hooked, and I've added a new bookmark and 'marklet to my tool belt. The service is free and, like so many other web 2.0 startups, will remain free, with the possibility of a more feature-packed premium offering debuting at a later date.

[via Leo Laporte's Twitter]

I run a linkblog that mirrors my del.icio.us links via a contrived set of PHP scripts I whipped up one night and which quits working every couple months. SlashLinks looks like a much better solution. It's a tool whose tagline is "Own Your Del.icio.us Links!" that scoops up your del.icio.us bookmarks and republishes them on your own web site with a template of your own design. It rolls your tags into the interface, as well, so you can click on a tag and see all the bookmarks for that tag without leaving your web site, and it'll even show a tag cloud. SlashLinks is built on Ruby on Rails, so make sure your web server is up to speed before attempting.