Meghan was kind enough to share some of the web-stats for browser resolution with me, and gave the OK to post them here as well.
The top 3 browser resolutions for visitors to AGO (representing 40% of the total viewers) are:
#1:1280x800
#2:1024x768
#3:1366x768
I was a bit surprised that 1024x768 represents such a large portion of visitors, and this gives Mike Phillips' view of using 800px as a standard a lot of merit.
I have decided that based on the active users that provided feedback, whom are also the people getting the most benefit from my posts, that I will begin posting 1024px wide, and offering a link to larger sizes, because there are a lot of people out there like me that enjoy BIG pictures.
I will also work with CEE DOG in writing a preface on how to best configure the forum settings for best viewing experience for articles.
Thanks again everyone!