I recently stumbled upon The Language Construction Kit in my search for a decent random name generator (don't ask...too geekily painful). Wow. This guy is totally my hero on the internet. Not only does he invent whole languages, he wrote a guide on how to do it yourself.

And, if that wasn't enough my latent inner Tintin fanboy is stunned by his grammary of Hergé's Syldavian language.

His site also reminded me of an old Suck... or at least an aside:

The late Professor Tolkien reportedly created his fantasies in support of imaginary languages he created for his enjoyment, which is sort of like starting a band because you bought a bunch of empty CD containers.