This paper describes the rationale and subsequent development stages of a work in progress: a graffiti toolkit for rich spatial 3D environments and an actual world mnemonic collection enterprise using mobile technologies. The driving concept for the design of the toolkit is enabling participants...

Although the British Railway Mania has been described as one of the greatest bubbles in history, it has been largely neglected by academics. This paper attempts to redress this neglect by creating a daily stock price index for the 1843-50 period and by assessing the contribution of the many...