It's useful to know the range of resolutions being used when viewing this site, both for design purposes and just to see if the average enthusiast/pro photographer is any different than the general populous in these things. Note that the question is 'what resolution you use to view the site', not what resolution you may use when doing photo editing. I've listed the general resolutions that should cover most bases. Apologies if your screen resolution is not included, but in that case it would be useful to choose the resolution that is nearest to yours
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My own viewing preferences are a bit varied - mostly full screen at 1280x1024, and occasionally on my other computer at 1600x1200.