As the death toll in China's Sichuan province climbs, the nation’s bloggers have joined together in the search for a scapegoat.

Broadband connections across the country are pulsing with rumours of "earthquake omens" involving toads or butterflies - all allegedly ignored by the authorities. Some even talk of a vast pre-Olympic conspiracy.

One blogger from Shandong province, in eastern China, wrote that more than a month ago, he went to his local earthquake resesarch centre several times to report that his animals had been disturbed and restless.

But, he wrote: "They not only ridiculed me, they accused me of making up stories."