Nearly four years ago, a web-based political movement set itself the modest task of closing the gap between the world we have and world most people everywhere want". Calling their group Avaaz, which means "voice" in several languages, ... the movement, using 14 languages and engaged in a mind-boggling list of causes, has had some spectacular successes. Within the next few months, membership will top 6m. The number of individual actions taken (from bombarding a politician with a well-aimed message, or funding a poster campaign, to helping provide satellite phones to Burmese monks) is estimated at over 23m. Among the recent developments Avaaz claims to have influenced are a new anti-corruption law in Brazil; a move by Britain to create a marine-conservation zone in the Indian Ocean; and the spiking of a proposal to allow more hunting of whales. Avaaz's campaign against the death sentence for adultery imposed on an Iranian woman asks members to phone Iranian embassies (and provides numbers); members are also being urged to put pressure on the leaders of Brazil and Turkey to intercede with Iran. Avaaz is collecting funds for a campaign in the Brazilian and Turkish press, too. Avaaz's other demands range from the simple -- close Guantnamo -- to the very broad: fight climate change, avoid a clash of civilisations. Despite the risk of blurred signals, the variety of causes is also a strength.