Brett:
You can find detailed instructions for preparation of injera in:
Handbook of Indigenous Fermented Foods, 2nd ed. Keith H. Steinkraus, ed.
There's lots of other interesting stuff here on fermented foods, including a 
good section on sourdough bread.
Regards,
John
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John W. Miles            Tel: (57-2) 445-0000 (ext. 3672) (Colombia)
C.I.A.T.                      (415) 833-6625  (ext. 3672) (USA, direct)
Apartado Aereo 6713
Cali, COLOMBIA           Fax: (57-2) 445-0073 (Colombia)
                              (415) 833-6626  (USA, direct)
Email: <j.miles@cgnet.com>
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