The blogspot rumor investigated

Despite the ongoing holidays (here in the US we now also have weekend) some more details from China are coming in, thanks to some active bloggers over there, especially Peking Duck and Brainsmurf.
The stories differ very much, also per region. That would not be so strange, since provincial and local authorities would have a large say in what is being blocked, it is never a unilateral decisions by a big brother in Beijing.
A few interesting speculations pop up. First a cooperation between Google and the mainland authorities is being suggested as it seems that the Google caches are partially blocked, allowing users to access most of them without proxy, but some not. That would most likely need help from Google.
The unexpected lift of the ban is also linked to the emergence of RSS and syndication services that would easy circumvent the internet filters, unless China wants to block whole new systems again. Interesting enough to keep on following actively.