The Pi makes an nice little server easily placed next to devices that source or sink information. Here we collect information about hosting federated wiki for this purpose or others that come to mind.
Raspberry Pi Model B Revision 1
PiFi Wiki Report will chronicle our progress federating wiki on this ultimately personal platform.
Internet of Things enabled by the Pi and its USB ports.
Server-Side Plugins that we like to test in the Pi's modest compute environment.
Pi Resources that I've found useful.
Raspberry Pi Zero with wifi, camera and a nice case.