We want a logo that is crisp, simple, intelligent, elegant, and clean but not too boring; classy and classic but not stuffy; whimsical but accessible; fun but not frivolous; serious but not didactic or overbearing. Our URL will (soon) be http://www.meetcharlie.com. Our old logo is at http://www.operanewmedia.com. We don't like that!
We like white, red, blue, green, black, orange - simple colors that feel classic. We probably want no more than 2 colors in a logo, but obviously follow your heart if you have a cool vision. We don't really like yellow, pink, purple, turquoise, fuchsia, fluorescent colors etc.
As far as iconography, we'd like some sort of icon. We imagine this will be a distinctive "C" that can be used as a favicon, stamp, etc. However, the most important thing is the rending of the word "Charlie." We don't think we want it in all caps, although we think the header at http://notational.net/ is very cool. We don't have a preference at this point between "Charlie" and "charlie" so pick what you like.
Ideally, your submissions will have a idea for the word "Charlie" as well as a corresponding "C". Don't hesitate to reach out with any questions! Really looking forward to seeing your ideas. Thanks for submitting!