National Geographic is an excellent website which contains articles and photo essays. Recent topics covered include the discovery of a historic shipwreck in Oregon; simulating hurricanes in order to make storm-proof homes and tracing the history of slave ships through objects found on the sea floor. There are themed sections to explore on the website (Animals, Environment, History, Science, Travel) and a wide range of articles which will bring readers up to speed on key geographical issues. A superb resource!