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.

This website from the International Fund for Agricultural Research shares information on strategies to eradicate rural poverty. The site publishes articles, case studies and videos on key topics including desertification, livestock and rural finance. It also links to relevant reports, projects, programmes and organisations.

The Stockholm Environment Institute is an international not-for-profit research organisation that aims to promote sustainable development through scientific analysis that supports decision-making on the national and international level. It focuses on four broad themes: reducing climate risks; managing land, water and air resources; improving governance; and developing new visions and pathways to development. The website provides free access to the institute's publications, describes current projects and links to useful modelling or policy tools such as LEAP (the Long-range Energy Alternatives Planning system) and IPAT-S.

The Project on Emerging Nanotechnologies, a partnership between the Woodrow Wilson International Center for Scholars and the Pew Charitable Trusts in the United States, is dedicated to minimising the possible risks of nanotechnologies as these technologies advance and ensuring public engagement in decision-making.

It publishes research results and meeting reports on topics such as agriculture and food, medicine and water treatment. The project also publishes news on its own projects and other key developments, and lists relevant events, mostly in the United States. A photo gallery provides access to images of some nano-based products and events.

The Water Sanitation Program is a multi-donor partnership run by the World Bank to improve access to safe water and sanitation. The partnership focuses on five topics: finance, rural water supply and sanitation, strategic communications, sanitation and hygiene, and urban water supply and sanitation. It publishes information about its work in each of these areas across key regions, highlighting relevant news and publications for each.

WaterAid is an international nongovernmental organisation dedicated to using low-cost technologies to improve access to safe water, hygiene and sanitation in the world's poorest communities. Its website addresses the need for improved water resources, provides statistics on water sanitation and hygiene, highlights case studies of the organisation's work and provides a comprehensive library of policy, advocacy and research publications.