The first and most important rule about designing text for the Internet is to pear it down. Ask anyone--reading page after page of content online is difficult, and students will usually prefer to print your materials rather than read them online.

Tips for Designing Text

Avoid the use of all capital letters for body text, because it appear that the text is shouting. It is okay to use CAPS for highlighting or for titles.

 

TYPING YOUR TITLES IN ALL CAPITAL LETTERS IS ALLOWABLE, but
avoid the use of all capitals when constructing complete sentences or long paragraphs of text.

Text items in bold face or other style will command attention. Contrasted colors may also attract attention.

The class will have a TEST on Friday. Don't forget your notes and textbooks.
Text size should correspond with the average viewing distance. For every 8 feet in distance from the instructional text, add 1/4 inch to letter height.
Employ approrpriate type families on the basis of your message (i.e., serif vs. san serif), and avoid the use of too many font faces on one screen or throughout one site (e.g., arial, helvetica, times, courier). San Serif fonts without feet are most appropriate for titles or bulleted items on charts and projected presentations.

Serif fonts with feet are most appropriate for long blocks of text, as commonly found in books and articles.
Separate text adequately to enhance readibility
    
Provide for adequate contrast between figure and ground (i.e., text and background). YELLOW ON DARK BLUE WORKS WELL
WHITE ON BLACK OR VISE VERSA WORKS WELL
WHITE ON GREEN WORKS WELL
BLACK ON ORANGE WORKS WELL
LIGHT COLOR ON LIGHT COLOR IS POOR
DARK COLOR ON DARK COLOR IS POOR
RED, GREEN, AND OTHER COLORS CLASH