I'm free-spirited, creative and pessimistic -- according to Signal Patterns, that is. But do you know what? That seems pretty spot-on. There are lots and lots of online personality tests, but last night I played with Signal Patterns, a personality profiling tool that is in private beta right now (you need to request an invite.) The company conducts research and builds online survey tools that aim to unlock the connections between personality, behavior and preferences. ...