The question of how life began (or in more technical terminology, abiogenesis) is one that often comes up in debates between the anti-science young-earth creationists and everyone else.
Ricky Carvel has posted some interesting thoughts on the topic on his blog. He suggests that, if one posits a living God as creator of life on this planet, then that is not the beginning of life. It is simply the creation of life by an entity that already lives.
I think this is an interesting take on the topic, and it might result in some very different discussions (given that it suggests that many people dive into these discussions with inverted assumptions). What do blog readers think?