^^^ IMPORTANT *** IMMEDIATELY CHECK ALL SMALL SPACES!! Under houses, in sheds, in culverts, wells, every small space! Go to the shelter IN PERSON, at least every other day. They are required to hold strays for only 3 days if there is no chip.
Print flyers, and give to the mail carrier, sanitation workers, vet clinics, shelters, and post at public places, like groc stores.
IMMEDIATELY cut several smelly socks into strips and hang everywhere outside. Lost dog experts also highly recommend putting the dog's bedding outside.
Also, highly recommend posting to as many lost pet sites as possible. Here are some, starting with the best: HELPINGLOSTPETS.COM, FIDOFINDER.COM, PETAMBERALERT.COM, CRITTERALERT.COM, LOSTMYDOGGIE.COM,, PAWMAW.COM
Helping Lost Pets (HeLP)
VERY IMPORTANT!!! Post to NEXTDOOR.COM & CRAIGSLIST.COM - many reunited in these free sites.
Put large neon posters at intersections, with only the word 'LOST', a brief description if there is no photo, and a contact phone #. NO MORE THAN THAT, or people will not bother to read as they are driving by.