Life In 19x19

Thanks everyone for the tips!

Here's a game I played black pretty terribly, I'm only really interested in comments on moves 1-70, because afterwards I started playing terrible overplays thinking I was behind. I included some of my own comments, but hope to get further comments from other (hopefully stronger) players.

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Can anyone explain to me what b93 accomplishes in the challenger match? Its that slow type of honte move that pros play that I never quite grasp the meaning behind it.

I'd like to start studying pro games, but I think it'd be better to have access to pro game commentary, but I don't know where the resources are for that. I can read a fair amount of Chinese so I'm looking for good and free english or Chinese pro game commentary.