Proper use of fonts, colors and graphics for the web

From the iCIT (University of Wisconsin Instructional, Communication & Information Technology) Web Support Team web site

This article discussed many things relating to font & design for websites including:
Font Color - The article points out that while the web offers more options for color than print typically does, black is still the best choice.
Heading Font Color - While black may be the best choice for reading font, a color that works with the color scheme of the page and has a strong contrast with the background is often the best for headings.
Font Families - This site recommends selecting Sans Serif fonts, while keeping in mind that how your font is viewed depends on the browser and computer that is using it. I was glad to see the tip for how to assure the font is viewed in way you'd like by using the CSS commands given.
Font Size - While this site recommends using one of two possible methods (pixel-based or em-based) for selecting font size, I think that I will always follow the ideas discussed in the Williams book, with major reading fonts as 12- to 14-point and other fonts relating to that based on contrasting font sizes. I will say, though, that on many sites, including this one, I have to increase the font size ( key + = key) in order to make large amounts of text comfortable for me to read.