A shocked public sent over 8,000 messages of sympathy from across the world to the families of Holly Wells and Jessica Chapman on a special website.
A special book of condolence has also been created by Cambridgeshire Police and Cambridgeshire County Council.
Once completed, the book will be sent to the county council to be transcribed into a permanent memorial of the two youngsters to sit alongside the book of condolence in Soham.
Visitors to the site are invited to leave messages by name or anonymously, and it is possible to read previous messages sent to the website.
READ MORE
It can be accessed via a link on the Cambridgeshire County Council website at http://www.cambridgeshire.gov.uk/in_memory.htm.