I fly alone often and I really wish they would notify us what zone they are boarding. Originally, I would ask the flight people at the gate to tell me, but most of the time, they forget about me. Bastards. Now, I just sneak a peek at people's boarding tickets and find one that has my zone. Now I go when that person goes. 
Delta (and perhaps other airlines?) do have TVs by each gate and most of the time, they tell us what zone is boarding. Thanks, Delta!!!
