Using my own blog
craftygal's knitting place, I can see that many of the users have display settings of 800x600. Therefore I must set the blog to make it accessible to them as well as the larger displays of 1024x768. I want to make it accessible for everyone.
The old standard screen
size was 800x600 for the 15" monitor. With so many people using laptops and 17" digital monitors, more people are using monitors with sizes of 1024x768. Some people may wonder why anyone would want to have the information on the screen look so small. I was one of those people until I started reading about it online. To get more information you can Google "1024x768 screen size" and read through some of the documents.
The main points that I learned (and there are many more) is that what we think of as a bigger or smaller screen size is actually the image dpi resolution. Image size is actually inversely proportional to dpi count. The higher the resolution (dpi count) -- the smaller the image on the screen. Also, the larger the monitor (example 17 vs. 15) then the higher resolution needed to get a clean crisp image. Therefore, with a 17" monitor you need a 1024x768 dpi setting. With a 15" monitor, 800x600 works fine.
Many folks still have a 15". With that in mind, the blogger/webmaster needs to still consider them when planning the page layout. The page will work on a 1024x768 screen, just look smaller. Don't be surprised when you see the blank space around the page with the higher resolution monitor.
I'm sure there is a way to make the page (and fonts) fill the screen (making it appear larger.) Blogger did it for the "create post" section. I'll have to try to find out how they did it.
For now, I will work on the 800x600 standard. If anyone wants to provide more information, please do so.