Blackle takes the people's favourite 'Google' and changes it into black. Indeed, a blog post titled Black Google Would Save 750 Megawatt-hours a Year firstly established the hypothesis that a black Google would save a quite a lot of energy due to the popularity of the search engine. The number of saved watts is recorded on Blackle, do your bit, and switch off the lights, even on your screen!
Ecosia is a search engine wrapper using Bing or Yahoo. From the revenues of sponsored links 80% are donated to support the WWF's work in Amazon as they try to save the rainforest and its unique biodiversity.
The Eco Key is a Google-powered search engine and provides you with the standard Google services but also gives you the possibility of an eco-filter, which will lead you to green results of your word search. The company thus dedicates 40% of its revenues to organisations that remove litter worldwide.
EcoSearch is also Google-powered, but it actually donates 100% of its gains to a variety of charities, which figure on the site's 'about'-section. If you want to suggest a charity, the site should be supporting, you can email David Krasnow, who is behind the website and does it in his free time!
Good Search is a Yahoo-based search engine and enables you to select a charity which will be supported for your search. Thus you can install a charity you want them to give to every time you search something, or you can change the selected charity all the time. You can also look at the amounts collected for every year and month. In my opinion it is a very effective way of involving the consumer in his sustainable behaviour.
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