Technorati has by far more features, they continue to be the innovation leader. It is because of these features that I force myself to use Technorati, day by day - but it's a painful experience (despite availability graphs Dave Sifry likes to quote).
Google Blog Search has one very convincing "feature": it works. Always. And fast.
When I say fast, I mean the speed of accessing data: it's instantaneous, vs. the looooong wait for Technorati. How fast the two engines index new blog posts is a different matter - but to me it's secondary. Scoble's example clearly shows Technorati as winner:
Technorati for videobloggingweek2007. 147 results.
Google Blog Search for videobloggingweek2007. 76 results.
However, checking those very same links after a while shows:
Technorati for videobloggingweek2007. 183 results.
Google Blog Search for videobloggingweek2007. 209 results.
Google is known to quietly add features without major announcements. The "biggie" to me is that Google Blog Search now finds comments left on any blog. Everybody says blogging is a conversation, yet half the conversation has been impossible to find so far. CoComment, co.mments are nice tools, but blog search engines have largely ignored comments until now. I'd say this is the first feature showing Google "out-innovate" Technorati.
I'm not sure Technorati cares a lot about head-to-head comparisons. After all, they no longer want to be the blog search company - they aim to become a media company.
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