The highly-controversial Stop Online Piracy Act (SOPA) has lost the support of Sony Electronics, Nintendo and Electronic Arts.
The companies' names have quietly vanished from the official list of supporters, just days after Go Daddy very publicly pulled its support.
However, while the three companies are no longer listed as supporters of the bill, they are all still members of industry body the Entertainment Software Association, which is backing it.
And while Sony Electronics may no longer be on the list, Sony/ATV Music Publishing, Sony Music Entertainment and Sony Music Nashville all still remain. There's more than a little suggestion that the companies are trying to have their cake and eat it.
It's not clear whether Sony was influenced in its decision by the Anonymous hacking collective, which three days ago vowed to destroy Sony's network unless the company withdrew its support for SOPA. Anonymous has also threatened Justin Bieber, Lady Gaga, Kim Kardashian and Taylor Swift over their support.
Meanwhile, other major companies are voicing protest about the bill, which aims to give the US the power to close down websites - including overseas sites - that it believes are infringing copyright.
Wikipedia, Google, eBay and others have threatened to shutter their sites temporarily with the aim of intensifying public objection to the bill.