Creator of the web Sir Tim Berners-Lee has been appointed by the government to lead a review of how the internet can be used to open up access to official information.
Prime Minister Gordon Brown said Berners-Lee was to oversee a project that would create a single portal where UK residents could access public data held by the government.
In a speech, Brown said: "So that government information is accessible and useful for the widest possible group of people, I have asked Sir Tim Berners-Lee, who led the creation of the world wide web, to help us drive the opening up of access to government data in the web over the coming months.
"All MPs' past and future expenses should and will be published on the internet in the next few days. Second home claims submitted by MPs from all sides of the House over the last four years must be scrutinised by the independently led panel. This will ensure repayment where it is necessary, and lead to discipline, where there have been inappropriate claims," he added.
The appointment was part of sweeping plans unveiled by the Prime Minister to reform and modernise British politics.
Newly appointed director of digital engagement, Andrew Stott, welcomed the appointment.
"I am delighted to work with Sir Tim-Berners Lee and his panel on this key part of the Power of Information agenda; they will provide the expert challenge and insight we need to drive action across the public sector."
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See also: Tim Berners-Lee is cybercrime victim