After four days of wondering, our indoor cat was found a few houses down. I know these alerts, emails, and apps help bring our pets home. THanks for all you do at MyLostPetAlert! (The reading that was suggested helped tremendously... is said that generally, indoor cats, if found, will be found within a 5 house radius - once I read that I refocused my efforts on my immediate area and even though it had been over 4 full days - he was found only two houses away!)