Since last week, it seems that way. Even though the Vietnamese government is issuing denials.

Some Vietnamese Facebook users launched a Facebook group in protest of the blockage, but as of right now it appears to only have a handful of members. Hmmm, wonder why that could be?

Of course, as Barack Obama found out last week after giving a speech in China about internet freedom, protests against censorship have an above-average risk of, well, being censored.