The American Association for the Advancement of Science calls itself "The World's Largest General Scientific Society." Here you will find up-to-date news on scientific discoveries, including the EurekAlert! which has breaking news for reporters, as well as science news and online activities for kids. The 'Topics in Depth' section has information on important issues such as climate change and stem cell research. There is much more here, although some of the materials require a paid membership for access.