The RaspiRobot GPIO board kit allows a motor, switches and sensors to be used with the Raspberry Pi
The Pi NoIR is a Raspberry Pi camera module with no Infrared filter for night time and low light photography using an Infrared light. Useful for wildlife research, science projects, night time security or making artistic photo's.
TNC-Pi is a terminal node controller device, GPIO add-on board used by amateur radio operators to participate in AX.25 packet radio networks.
Get started with a Raspberry Pi the easy way. New out of the Box Software or NOOBS is a utility to make installing Operating Systems for the Raspberry Pi simpler for Raspberry Pi beginners but also can be used as a recovery system useful for more advanced users.
Examples of the differences in quality of the four image types Raspistill uses, Jpg, PNG, BMP & Gif
Example photos of the image effects option for the Raspberry Pi Camera using Raspistill. Also available in PiCamera python library.
The Raspberry Pi makes a great low-power lightweight server for NFS (network file system), mail server, git server, and, of course, a web server.
The Raspberry Pi Camera Module is a 5 mega pixel add-on board that can be used for taking photos and high definition 1080p video which attaches to the Raspberry Pi's Camera Serial Interface (CSI).
I've expanded the Raspberry Pi beyond a simple Single Board Computer to allow it to better interface with other hardware in an industrial setting.
Pi Supply is an add-on board for the Raspberry Pi adding an on/off power switch and power managment features.
Tux Paint is a paint program designed for children with easy to use big buttons and loads of fun features to keep children entertained for hours.