On this week's Digital Planet:
'Are you an open source software fan? Gareth Mitchell talks to Dr. Joseph Feller from University College Cork about the Calibre Project - a Europe wide initiative to encourage industry and academia to share software. Joseph Feller believes it can also benefit computer users at home! We look at how geographical information systems and the creation of digital maps are vital in the drive to eradicate the Polio virus. And does "google-archy" exist? According to new research the wide held belief that search engines distort the popularity of websites simply is not true. Does Digital Planet agree?'