If you want to find information about Vikings on the web, there's a LOT OF PLUNDER OUT THERE!
Here's some suggestions for links to start with,
including some of the events and institutes mentioned in the radio series:
Viking 2000 - The Voyage of the Viking replica ship Islendinger
On-line translations of Icelandic sagas
The Viking Answer Lady
L'Anse-aux-Meadows National Historic site
Full Circle Exhibition
The World of the Vikings
Icelanders in Manitoba
Icelandic Viking Millennium page
Arne Magnussen Institute in Reykjavik (Icelandic sagas)
Viking Trail Official Website - Newfoundland & Labrador, Canada
Minnesota Vikings: The Official Team Web Site
Gimli Manitoba - site of the ISLENDIGADAGURIN Festival
Viking museums in Scandinavia
Vikings in America
Viking Millennium International Symposium
Kensington Runestone Museum
Western Icelanders in Manitoba
Stephan Stephansson House-Markerville, Alberta
The Icelandic Emigration Center
Misc. Viking links