Signal Patterns , makers of scientific-based social web apps, have just released a Facebook app whose goal is to help you find new friends based on an in-depth personality assessment algorithm This app matches people based on their unique personality traits - not just "rough" personality types If that sounds a lot like some dating web sites you've heard of...well, you're right Signal Patters is essentially offering eHarmony for Facebook except instead of love connections, they hope to offer you a better way to find friends The question is, is that something we need