Click4carbon is an environmentally conscious search engine which donates 50% of profits to forestation projects worldwide.

It is also a Social Network. Their ECOmmunity is where you can make friends and discuss all things ‘green’.

They have also developed a fantastic carbon calculator which allows you to compare your footprint against the country you live in.

You can also add the Footprint widget to your Facebook or MySpace profile and compare with your friends for a bit of fun.

Give it a go – you’ve got nothing to lose!