Founded in 1866 The Royal Aeronautical Society, also known as the RAeS, is a multidisciplinary professional institution dedicated to the global aerospace community. The objectives of The Royal Aeronautical Society include; to support and maintain the highest professional standards in all aerospace disciplines; to provide a unique source of specialist information and a local forum for the exchange of ideas; and to exert influence in the interests of aerospace in both the public and industrial arenas. Throughout the world's aerospace community the name of The Royal Aeronautical Society is widely known and respected. Although centred in the United Kingdom, the Royal Aeronautical Society is a worldwide society with an international network of 63 branches.
Go to their website and find everything from audio lectures to video, photographs and blogs. This is a real great site for anyone interested in aviation.
You can find Tim on Twitter @RAesTimR and the Society at http://aerosocietychannel.com/