A new search engine will give 50% of its gross revenue to charity every month and predicts that if just 10 supporters from each of the 188,000 UK registered charities used the website, £22m could be raised in the first year alone.
Everyclick.com operates in the same way as other search engines, providing full search results, images, news feeds and special features such as Amazon product listings.
Users are able to register so that the money they generate by clicking through Everyclick goes to their selected charity. Funds generated by people who do not register a particular charity will be distributed pro rata to all the charities signed up with Everyclick.
Charitable organisations involved in the scheme so far include Save the Children, The Meningitis Trust and Hope HIV.
Polly Gowers, managing director of Everyclick.com, said: "We're hoping that Everyclick.com will capture the public imagination and become a big hit. It's one of those small changes everyone can make that add up to a real, lasting difference."
A marketing campaign, created by ArthurSteenHorneAdamson, has been launched to promote the initiative with press, online ads, postcards, mouse stickers and pens using the strapline 'Give your mouse a heart'.
In the viral Email campaign, a bright blue mouse is featured doing "random acts of kindness", a six-foot real-life version appearing at various venues and events over the next few weeks.
The Website has been developed after 18 months of planning and developing by Gowers and finance director Julia Fenton, with Michael Howes as non-executive director.
The service only provides funds for listed charities and non-exclusive agreements have been drawn up to ensure compliance with the 1992 Charities Act.
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