He doesn't seem to bark at people very often, just when they are walking by. I'm not too bothered about that-he's just protecting his family! It's his howling that is getting us in trouble. When we let him outside, he does his business and then starts to howl. When we leave for the day, we are supposed to put him in a kennel (landlord's rules) or locked in the garage. He will immediately start to howl and bark as we go out the door, and will continue to do so every 30 minutes to an hour after. He's so much like my son, that I think he just gets lonely, but we can't take him to work with us-as much as he wants to go!
When he does it when we let him outside while we're home, I will open the door and yell "no bark!" I won't let him inside until he scratches at the door-which is how he should ask to come in-not by howling. When he scratches, I will let him in and praise him.
We were lucky to find a place to take pets! In fact, we ended up moving to a different area, where a lot of the places take pets. Might be because it's a college town!?