Other search engines proved no more useful immediately after the attacks, said Search Engine Watch.

BBC: Search engines swamped

"That's pretty much par for the course, " says Danny Sullivan, editor of Search Engine Watch.

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But the performance of one of the other main search engines, Google, was a "great disappointment", said Search Engine Watch.

BBC: Search engines swamped

Mr. DANNY SULLIVAN (Editor, Search Engine Watch): Anybody who had a classified ad probably would want the traffic from Google coming to them.

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"Searches for World Trade Center at places such as MSN Search, Ask Jeeves and Yahoo, for example, brought back no listings relevant to the current catastrophe, " said Danny Sullivan, editor of Search Engine Watch.

BBC: Search engines swamped

In all, the watch carries 304 components and a 36-jewel engine.

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