How terrible! I'm so sorry!
Please do send photos to my attention, and I will be pleased to post
to the somervilledog weblog. I can also post to my facebook account.
I trust you've already contacted your local Animal Control Office and
Police Department.
I don't know how much it will help but there is a national mailing
list for lost dogs:
http://pets.groups.yahoo.com/group/K9AmberAlert/
There is a list of dog owner groups in Massachusetts at
massdog.org.
Good luck! I hope your dogs make their way home soon!
Cheers,
Michele
with Strummer (standard poodle)