What you get from Favourites is the lastest posts from a selection of blogs I have chosen in this tag/topic, you can also get a list of the source blogs.
Then we have the Technorati Blog Directory, this is claiming your blog, and labelling it with topics, here is web2.0, but you will notice they don’t have the latest posts stream, they once did, but they took it off a while back.
So we have latest posts by topic within a few spots: Favourites, Tags, no longer Blog Directory…and now we have Technorati Topics.
What you get is a stream of posts, don’t know what happens when they fall off the page, and you get a featured only source list…also we don’t have the luxury to bring explore to us via RSS.
Tags, Blog Directory and Favourites are users doing it for themselves, whereas topics is an inhouse thing, what I mean is Technorati themselves are choosing the sources.
In my Google Reader or even Technorati Favourites, I group a selection of feeds in a folder and click the folder to see a river of news.
So I suppose Technorati is doing the same thing, only their source list may change according to rankings/authority, etc…we only change sources in our RSS Readers based on personal reasons.
Plus we are only seeing popular posts, from these sources…something else our RSS Readers don’t do…aideRSS helps.
Actually there are some clustering RSS Readers like Feedable and FeedEye…and let’s not forget OPML Sampler.
Anyway I see the Technology topic in the realm of Techmeme, megite, and Google News (don’t forget you can customise your Google News, similar to Technorati Favourites, but based on search terms not sources), but not really as it’s missing the big ingredient, clustering.