I joined Noreascon this year, so this year I'll be nominating for Hugos and voting in the Locus Awards. Fortunately, they have fairly similar eligibility rules, so one list should suffice for both.
My list incorporates Rich Horton's year-end summaries, various award shortlists, the monthly recommended reading lists by Nick Gevers and Rich Horton in Locus, my own reading, and any other lists of recommended stories I can find. Since this is just something done quickly for my own reference, I haven't in the past tracked the source of particular recommendations, but I may add that in the future.
And so, the lists: