The history and lore of sourough cooking using a live yeast starter.
Armchair world makes several varieties of starter available for mail-order.
Detailed instructions for basic sourdough, with photos. Many sourdough recipes. Joan's Sourdough Bread Primer Easy to follow instructions and a few good recipes. Frequently Asked Questions from the Usenet sourdough discussion forum. You can find over two dozen Sourdough recipes here, both tradtional and those not so traditional.