The VC Society - As it says, a society for the VC enthusiast
William Angus - For Valour.com
The Bedfordshire Regiment (incl. Hertfordshires) - Regimental info including VCs
VCs of the Boer War - as it says, VCs of the Boer War
Wikipedia - The online encyclopaedia's entry for the VC
WW1 Cemeteries - A site listing many European cemeteries, including those that hold VC recipeints
Ypres Salient - Victoria Cross holders buried in cemeteries or commemorated on memorials in the Salient
Daniel Cambridge VC - Yeoman of the Guard - A site dedicated to Daniel Cambridge VC
There are many more sites out there... it's just a case of adding them to the list.
If you have a site, either dedicated to or containing VC info, please let me know and I'll add a link here.
And here are/will be a few links to non-VC related sites but still of interest......
North Manchester Battlefield Society - The NMBS travel around Europe visiting many battlefields