Unpublished or negative data rarely leave the lab books, even though they may help the scientific community at large avoid the repetition of unnecessary experiments. Figshare.com is an interesting initiative that tries to change that.
Mark Hahnel explains FigShare:
This is a new way of bringing scientific research online and to a new audience. By categorising and tagging the research, it becomes very searchable …there is also the ability to easily share figures, datasets and videos via a host of social media platforms through ‘share buttons’ on every page.