Australian Shepherds
http://www.facebook.com/AustralianShepherdsLostAndFoundUsa
Beagles
http://www.facebook.com/LostAndFoundBeagles
Boxers
http://www.facebook.com/LostandFoundBoxers
Missing Lost, Stolen, Found English Bulldogs
https://www.facebook.com/groups/600894109938370/
Chihuahuas
http://www.facebook.com/LostFoundOrHomelessChihuahuas
Lost, Stolen or Found Yorkies and Dachshunds Facebook group
https://www.facebook.com/groups/1002467526446704/
German Shepherds
http://www.facebook.com/GermanShepherdLostFound
Great Danes
http://www.facebook.com/pages/Lost-and-Found-Great-Danes/275443399143778
Greyhounds
http://www.facebook.com/GreyhoundAmberAlert
Huskies
http://www.facebook.com/huskydogslostfound
http://www.facebook.com/HuskiesLostFoundHomeless
Pit Bulls
http://www.facebook.com/pages/Pit-Bulls-LostFoundMissingStolen/231981680213393
Yorkshire Terriers
https://www.facebook.com/pages/Lost-Stolen-or-Found-Yorkies/271313322885659
Lastly, make sure you are reaching out across a variety of networks to publicize your missing pet. Remember that not everyone is on facebook or social media sites, so it's important to use newspaper ads, classified listings, Craigslist, local lost and found sites, community bulletin boards, etc.
Lost Pet PR | Delmarva's Lost and Found Pet Network
"REUNITING FAMILIES IS OUR GOAL"
Covering the Eastern Shore areas of Maryland and
Virginia and including the state of Delaware