SciDev.Net

A project of the Thomson Reuters Foundation, AlertNet is a news aggregator that aims to raise awareness of humanitarian crises around the globe, particularly 'forgotten' emergencies that rarely make headlines. It publishes news from over 400 aid agencies and other media outlets across a range of topics, from natural disasters to climate change to health. AlertNet also provides tools for journalists, including facts and figures, crisis briefings and training modules.

The Guardian Environment website publishes news and commentary on environmental issues such as climate change, energy, ethical living, food and recycling.

It also provides blogs, job listings and multimedia, including audio and video podcasts. Users can comment and are encouraged to join discussions.

The website also aggregates relevant news from members of the Guardian Environment Network, which brings together the world's best environment websites including SciDev.Net, China Dialogue, Real Science and the World Resources Institute.

Nanowerk is a clearing house for information about nanotechnology and nanoscience. It publishes regular news on key developments and a daily feature article — written in cooperation with scientists — looking at new findings, reviewing current research or exploring interesting applications such as water treatment.

Nanowerk also hosts a database of more than 1,900 nanomaterials and links to key events, reports, documents, magazines, organisations and blogs relevant to nanotechnology. Its video library links to dozens of animations and videos about nanotech research, speeches and lectures.