We still really like this logo (#4). We like the dimensional feel of it. Could you possibly move the squares to the left of Connexon?
Also, is there a way to make the three connecting squares somehow represent 50%, 30% and 20%? not sure that's doable, but want to throw it out there. In other words, just the three pieces of direct marketing (audience, offer and creative)--show the importance of audience selection as 50%, offer as 30% and creative as 20%.