I just wanted to make a general comment about lost pets, and the powers that be on this website may decide that this post needs to be moved, which is no problem.  
 
Several months ago, my 2 Rhodesian Ridgeback dogs got out of our fence, and I posted on this forum to see if anyone had seen them.  I got several very encouraging responses back, but no one reading this site had seen them.  I was especially worried because I had failed to put their collars on them (mistake that I will not make again!) when letting them outside, and they did not have a micro-chip.
 
Thank goodness, a Bluff Park neighbor saw my dogs wandering around her yard, and being late at night, kept them for me until she could check for a micro-chip the next day and call local vets.  Her house was over a mile away from my house!  My dogs did not have chips, but we were able to connect through the Bluff Park Animal Clinic.  As soon as I picked them up, I took them to the vet to be chipped.  It was very inexpensive, and should my dogs ever get out again, I will feel much more confident that they will be found now that they have the chip.  Most all vets and animal shelters have access to a scanner that can scan animals for owner information and contact info.
 
Just a personal experience that I wanted to share in support of micro-chipping pets.    It is a quick, inexpensive and permanent way to keep tabs on our beloved pets.