Raspberry Pi Zero
In this category, we include Raspberry Pi Zero - the smallest format of Raspberry in the most economical price. As Raspberry Pi foundation itself describes it "half the size of Raspberry A with twice the utility". Raspberry Pi Zero comes in two versions with (Raspberry Pi Zero W) and without connectivity solutions. Even though fit in a smaller format, Raspberry Pi Zero standard Raspberry functionalities with slightly lower specs.
Computing modules Raspberry Pi
Having noticed how their boards were frequently applied in numerous professional solutions, Raspberry Foundation has prepared a more flexible format of the board. Raspberry Pi computing modules are further miniaturized modules with Raspberry Pi guts and DDR2-SODIMM connectors. They can be used both with your own PCB as well as with extension boards from Raspberry that enable more GPIO and interface modules than a standard Raspberry. All that in prices of around 30-40 EUR, so pretty much the same as the standard board. This is essentially a great solution for device prototyping at reasonable prices even for a single board.
Raspberry Pi interesting materials
There is a range of both physical and virtual materials for Raspberry Pi boards developed by experts and fans of the popular board. For interesting materials on both the technicals and interesting projects for the boards you can review The MagPi magazine - the actual official magazine for Raspberry Pi, further for interesting programs and projects Instructables is the place to go. Additionally, we will increasingly cover Raspberry Pi projects on our website in both blog and learning sections.