I like the simplicity of #34. I totally didn't get the HC negative thing at first but now that you mention it, it's very clever. The colors and shape feels nice too. I don't think this is it but it got some nice elements.
the original HC lettermark, converted to cogs and churning out code in the form of binary =) the binary can easily be replaced with something else if it would be more relevant, brackets etc to represent html code or simple squares for data bits etc