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The Serial Comma
Grammar Girl always provides helpful advice on confusing grammar issues. She addressed the serial comma this week.
Read the post (or listen to the podcast) because she has great examples. But here is her bottom line:
So, the bottom line is that whether or not to use the serial comma is a style issue. Most publications except newspapers favor using it all the time, as do I, and all publications call for a serial comma when leaving it out could cause confusion. And sometimes sorting out your meaning is just too much for one little comma and the best option is to rewrite your sentence.
Go Grammar Girl!