Technorati Inc., the San Francisco company that offers a blog search engine and other services, has raised another $1 million, but still has not articulated a clear strategy.

The latest capital adds to the existing $10.52 million already raised as part of its third round of financing, started last June.

DG Incubation, operator of Technorati Japan, is listed as a new shareholder, alongside existing backers Draper Fisher Jurvetson and Mobius Venture Capital, according to PE Wire, which referenced the filing. VentureBeat hasn’t confirmed this.

Technorati continues its search for a chief executive, and has also appeared unfocused lately (see our recent coverage; scroll down). While its traffic appears to be growing, its search tools have remained somewhat weak, even as upstarts like Sphere improve their blog searches.

Spehere recently started offering better visuals of blog stories, and related content, for example. Take a look a the screenshot below. In this example, VentureBeat is part of the “technology” coverage. As you scroll through Sphere’s headlines, a fuller summary of the story pops up along side. To the far right is related content to the story you’re looking at.

Technorati has now raised more than $15 million.

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