Online BGP study material for newbies

Per the subject line, could anyone recommend online sources of information that would be helpful for a newbie (approx. CCNA level) learning BGP? Material that covers both common & best practices in a Real-World-compatible manner would be especially helpful. -- W . | ,. w , "Some people are alive only because \|/ \|/ it is illegal to kill them." Perna condita delenda est ---^----^---------------------------------------------------------------