The Raspberry Pi might not be a heavyweight in the specifications department but that is no reason why this inexpensive educational computer shouldn't help you learn more about some of the latest technology used to create web sites. The availability of some of the latest open source software in Arch Linux ARM introduces the exiting possibility of using the device as a mini portable web server (you could even battery power it). This could be very useful, not just for learning about these new technologies but also if you wanted to try your sites out with client machines that may not let you install server software locally, e.g. phones, tablets and set top boxes.