
In a joint statement issued on Tuesday, , revealing plans for a two-tier internet system in the US.
While positioning the proposals as enforcing the net neutrality principle, Google and Verizon have come under fire for what some see as loopholes within the plans that could lead to what has been described as a two-tier internet.
The companies suggested the proposals should not be applied to wireless networks, only to wired broadband services, meaning access from smartphones and mobile internet devices such as the iPad would not be included in any legislation to prevent paid-for prioritisation.
Facebook, which recently notched up 150 million mobile users, said it will continue to support principles of net neutrality for both landline and wireless networks.
"Preserving an open Internet that is accessible to innovators, regardless of their size or wealth, will promote a vibrant and competitive marketplace where consumers have ultimate control over the content and services delivered through their Internet connections," said a Facebook spokesperson.
Ebay, Amazon and Skype have also criticised the Google Verizon pact, according to the Financial Times.
However, Ralph de la Vega, chief executive of US telecoms and mobile operator AT&T, has defended the proposal calling it "reasonable framework" for the industry and demonstrates that carriers and Internet companies can reach agreements on Web policies, according to Bloomberg News.
Google and Verizon attracted criticism from internet campaign groups last week after reports about the two-tier system first emerged.
Separately Facebook and Five have denied reports that they have done a 'deal' to incorporate Five's Demand Five player on the social media website.
A spokesman for Five said it has been talking to multiple platforms about content syndication, but currently has nothing confirmed with Facebook for integration.