Two great resources with step-by-step tips on what you should do if you find or lose a pet are: Lost Found Checklist or Cat Connection Lost Pet Tips
Check both the lost and found pet sections daily on all the sites as new listings are posted constantly.
If you’ve found a pet, contact vets in the area. The lost/found dog or cat may belong to one of their patients. If your pet is microchipped, contact the microchip company to make sure they have your current contact info.
Post Lost/Found flyers in the neighborhood where lost or found. Talk to anyone you see on the street or in their yards. Don’t underestimate what people may have seen while walking/driving around the neighborhood. Many pets are found just by talking to neighbors.
Check Animal Care Services daily as the city only holds stray animals for 3 days: http://www.sanantonio.gov/animalcare/lostandfound.asp
www.responsiblepetowners.org or call 822-6763
www.craigslist.com (get on SA listings – 2 sections: Lost & Found and Pets)
http://mysa.kaango.com/feChoosePostAd (Also check the Express News every day. I believe lost pet ads are free for 3 days. Indicate date lost in ads.)
Man & Beast is not online and keeps an index file of lost/found pets: 590-7387
San Antonio Express News:
The Express News only runs print classified ads on Thursday, Friday, Saturday and Sunday. Classified ads run on the Express News website every day of the week. One can place a classified ad for a FOUND pet for FREE. It will run for 4 days in the paper copy and 14 days on the website. One can place a classified ad for a LOST pet for a cost, $33 and up. Those ads also run for 4 days in the paper copy and 14 days on the website. Call is 250-2345, Option #1.