"A lot of this is about changing assumptions," said Professor Nigel Shadbolt of Southampton University, who helped develop the website.
"If [the data] can be published under an FOI (Freedom of Information) request why not publish it online?"
The site currently contains 2,500 data sets but the pair hope it will continue to grow.
"It is a job that is never going to be entirely finished," said Prof Shadbolt. "Government is always collecting data."
One of the key data sets they are trying to include is geographical location from the Ordnance Survey (OS).
"That will make a real difference to the way that people make sense of the information," Prof Shadbolt said.
He said they were "currently in discussion" with the OS and were hopeful that the data would be available on 1 April.
In November, the government announced that most Ordnance Survey map data would be freely available online in 2010.
Currently, it is only available free of charge to small-scale developers.
'Grow the economy'
Prof Shadbolt is also trying to extend the project to cover local government information.
The site is part of a growing trend amongst governments to be more transparent with their data.
In the US, the Obama administration launched data.gov, which offers feeds from various departments including the US defence department and Nasa.
London Mayor Boris Johnson has also announced the city's authorities will open an online data warehouse on 29 January with more than 200 data sets relevant to life in the capital.
"This is a tremendous opportunity for UK firms to secure better value for money in service delivery and to develop innovative services which will help to grow the economy," said Stephen Timms, Minister for Digital Britain.
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