Noob Steganography CTF
Cheapest form of Steg you will find. Just combined a TXT and JPG and threw it together over an input field.
Rest of the web site is basically a CodeIgniter HMVC module with a few methods (Initial landing page method, for processing method and the method for correct input result redirect.)
View the JPG in notepad, answer is at the bottom (blatant mispelling to counter guessing).