http://www.awarenessday.org
http://www.prisonersofgreed.org

Check:

Your local animal shelters (there is the San Francisco SPCA)
http://www.petfinder.org
http://www.dogsindanger.com
http://www.petharbor.com
http://www.adoptapet.com
http://national.shibarescue.org/
http://www.akitarescue.com/
http://www.tikihutakitarescue.com/available.cfm
http://www.barkbytes.com/rescue/shiba.htm
http://www.barkbytes.com/RESCUE/akita.htm
http://www.shibas.org/index.html has breed information, breed rescue and responsible breeder referrals

Also, consider adopting an adult dog! They are often overlooked and often euthanized, even if they have been housebroken and are easier to take care of. Here are the many benefits of adopting an adult dog

http://www.la-spca.org/adoptions/advantages.htm

~*~If you're interested in a dog but live too far away from it, there is the option of having a dog transported to you/near you. Google "dog rescue transportation."~*~
References :
10+ years of being a shelter volunteer, pet owner and lifelong animal lover

http://www.tikihutakitarescue.com/available.cfm
http://www.akitarescue.com/rescue.htm
http://www.akitaclub.org/info/breeders.html

http://www.shibas.org

DO NOT BUY FROM A PET STORE!!

http://www.stoppuppymills.org
References :

Guessing by the fact you don’t know where to find one, you are not ‘in’ with other people who have those dogs and therefore should find another dog to learn with.

Akita’s can be aggressive, dominant and hard to train. Shiba Inu’s are also stubborn a big flight risk and hard to train. Neither of these dogs are the most intelligent which makes training much harder for you.

I hope you find another dog and it fulfils your wishes, I bet there is one at the pound, just waiting for you!

Best wishes
References :
20 years of dog Ownership
Volunteer at Humane Society for problem dogs