Official, genuine Arduino boards from Arduino
Arduino Zero an extension of the Arduino Uno is the new version for your Iot needs.
Arduino Yun combines both Linux and Arduino in one board
Arduino Due is ARM based -Advanced RISC Machines (ARM)
Arduino Mega 2560 R3 is running on the ATmega2560 and hence its name.
LilyPad Arduino USB - ATmega32U4 Board has an inbuilt Arduino Bootloader running on the ATmega32U4.
Arduino Pro Mini 5V/16MHz is the more advanced version of the 3.3V Arduino Pro Mini.
Arduino Pro Mini 3.3V is a cost effective solution to the Arduino
Lilypad Arduino 328 is a microcontroller board thats runs on ATmega 328
Arduino Pro 328 - 5V/16MHz is a micrtocontroller board running on ATmega328.
Arduino Uno R3 is a beginner level microcontroller board that is most compatible with all other development boards.