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@jwack – it won’t be easy as a non-programmer.

Your best route is probably to make use of switch_to_blog(); and use a ‘standard’ WordPress posts loop on each blog in turn.

Search ‘wordpress loop’ in Google. You’ll also need to call functions to fetch the author, etc.

You may be able to figure out your loop code from the examples on the WordPress codex… if not, there’s no short cut and you should book up on the PHP programming language.