Thank you gemy, you brought up several things I had not thought of.
They sleep in my bed, where petsitters will be sleeping with them, so I don't think I'll put a webcam in there
I'm also afraid if I saw my pups on a webcam I'd miss them too much and come home early.
I suppose I should also leave a letter of permission for treatment, and assuming financial responsibility in case emergency vet treatment is needed.
My biggest fear is that they will get loose, and they could be on a busy street in about 2 minutes. It's why I have them cared for in my home, so hopefully they won't miss me and try to go looking for me.