Greenpeace has launched a very well designed website to coincide with The Day After Tomorrow's release.
With a similar URL to the real movie website, they mimic the official film style, while attempting to get a serious message across - climate change has already started. It has to be said though that the official film website doesn't simply promote the film, but also highlights some of the issues - though the fake news stories of a frozen California and snow on the Acropolis in Athens undermine the serious point being made.
One previously mentioned website is the generally excellent Stop Esso. Its links pages connect to myriad websites devoted to environmental themes, usually devoted to single-issue campaigns. This reflects a weakness of the environmental movement - campaigning is often reduced to single issues rather than being united.
Nonetheless many of these sites illuminate areas of environmental activism you might not have considered. Coupled with the campaigns against corporate destruction, there are many websites which look at your individual impact on the globe. The FootPrint quiz calculates how many earths would be required if everyone lived your lifestyle. It's interesting, but misses an important point - that your lifestyle is mostly governed by the society you live in, one that is dominated by the insanity of business's drive for profit.
The war and occupation of Iraq are only the latest attempts by western countries to control major sources of oil - and historic attempts to carve up the Middle East in the interest of oil companies are well documented. Less well known are ongoing attempts to control oil resources in Africa, and the 'African Oil Politics' weblog helps document this and other related issues.
Simply interpreting the world isn't enough-it needs to be saved, and quickly - so both Rising Tide and CCC have plenty of campaigns and further links to help build the movement to stop environmental destruction.