Welcome to Astronomical Society UK
Campaign for Dark Skies, (CfDS - A Joint Commission of the BAA and the IDA) is a society with the aim of reversing the trend of wasting energy by lighting up the sky to the annoyance of those of us trying to do astronomy. As they say, "The light from the rest of the Universe takes hundreds, thousands or millions of years to reach our eyes. What a pity to lose it on the last moment of its journey!".
Need Less Campaign - Animations and posters to raise awareness of light polution.
The Extrasolar Planets Encyclopaedia , original French site, US mirror site at Harvard. Jean Schneider CNRS, Paris Observatory maintains this site as a clearing house for all the latest news.
UKSEDS - Students for the exploration and development of space. Is an international organisation dedicated to raising awareness of space education and space related issues in society.
http://setiathome.ssl.berkeley.edu/ is a scientific experiment that harnesses spare CPU cycles on hundreds of thousands of Internet-connected computers (PCs and servers) in the Search for Extraterrestrial Intelligence (SETI). You can participate by running a program that downloads and analyzes radio telescope data (collected in piggy back style while the Aricebo telescope is making normal observations). There's a small possibility that you could be the one to detect the faint murmur of a civilization beyond Earth.
BBC space website has lots of information from observing to how star die and current information.
BBC norfolk website has basic information for beginners. Projects and information for children. - edited by Mark Thompson
Sky Maps has a free detailed map of the sky for Northern or Southern Hemisphere with a list of objects observable with naked eye, binoculars and telescopes.
Last, but by no means least, there is even a page dedicated to Solar Sails. It is amazing what you can find on the web.