The title says it all!
I am looking to purchase LIVE kefir grains and sourdough starter.
Do you have any favorite places?
I just purchased live kefir grains from a woman named Marianne Manley, you can find her information at kefirlive.com. It costs $20 cash (through the mail, seems sketchy I know, but she is reliable.), which includes shipping. I received mine a few days ago. We decided ahead of time to dump the first two batches because I am somewhat new to kefir and didn't know what would happen to the grains while they were in transit. We just used the 3rd batch in smoothies and all seems well!
While waiting for our grains to arrive in the mail we (my husband, 2 year old son, and I) drank Lifeway brand kefir in smoothies and on our oatmeal. We are looking forward to using our home made kefir every day now. Unfortunately, in a few days, my husband and I are starting a Daniel fast, (see Daniel, chapter 1 and 10 in the Bible) consuming only plant-derived foods and water for 21 days so we will have to let our kefir sit in the fridge for the time.
I don't know where you can find a sourdough starter.
When you start making your kefir, please let me know because I might have a few questions for you!
Hope this helps :)