The membership service links the current NCC activities with those offered by its acquisitions over the past year - user groups Certus and CIO-Connect.
"The name Principia is very apt, as the service will provide the foundation stones of best practice guidance that underpin effective IT service delivery," the NCC said.
The service includes a new web interface, an online discussion forum, and sector-specific research options.
The revamp is part of NCC chief executive Michael Gough's vision of helping IT users take control of their own business destiny, which he articulated at the Economist CIO Summit in London earlier this month.
At the CIO Summit, Gough said IT users were losing control by allowing application development to be outsourced and argued for much outsourced work to be brought back in house.
Gough also said proprietary software standards stifle innovation and users should embrace open standards.
lLast month, the Office of the E-Envoy awarded the NCC the contract to establish and operate the e-Gif Accreditation Authority Programme, which certifies IT professionals who use the E-Government Interoperability Framework. The mandatory framework sits at the heart of all major government e-programmes.
lThis month the NCC announced it is to partner with Ashridge Business School to provide executive development courses for IT professionals. The joint IT Executive Programme, which will run in 2005, is aimed at helping IT staff gain business and leadership skills, as well as helping business managers.