Beatbullying is organising what is believed to be the first ever ‘virtual march’ on Downing Street.
The anti-bullying charity is arranging the Big March as part of a campaign to get the government to set up a commission to investigate ways of tackling bullying.
Supporters are being encouraged to register on a Big March website and create avatars of themselves, which will then march across the websites of participating organisations on 15 November, the first day of Anti-Bullying Week.
The avatars will take 30 seconds to cross the websites of each of the organisations taking part, including Google and the Metropolitan Police, before ending up on the Number 10 website, where it is hoped an avatar of David Cameron will meet them to collect a petition calling for the establishment of a bullying commission.
"The Big March represents a completely new way to campaign in the 21st century," said Emma-Jane Cross, chief executive of Beatbullying.
"It is absolutely vital for charities such as Beatbullying to constantly seek innovative new ways to engage government, as well as the public, particularly in such economically challenging times."
A Beatbullying spokeswoman said it had not set a target for the number of people it hoped would take part, but she hoped it would be thousands.
Maggie Atkinson, Children's Commissioner for England, said: "I very much hope that this march will mobilise support against bullying in the virtual world, in schools and right across society and government."