Podcasts from the Institute of Historical Research.
UCL's public lunchtime lectures are on YouTube.
Flickr the Commons makes photos from cultural institutions available and invites others to tag and comment.
There are many free tools available which enable you to create professional-looking 'visuals' to help convey your research, such as infographics, flowcharts, timelines and context-sensitive explanation.
There is much speculation about the future of social media and other technologies. Watch this short student film predicting our future everyday life with Augmented Reality...
Presentation by Steve Boneham about recording and producing audio.