A great article about formatting your website text for easiest reading and maximum effectiveness. In Summary:

  • Sans-serif fonts work the best for online reading
  • Using a larger font size is not the best strategy
  • Try to limit larger fonts to headings/subheadings
  • Different colors should be used with care, contrast is best
  • Shorter paragraphs are better than long ones, due to the way people scan text when reading online
  • Shorter pages are also easier on readers, with links to different pages for more in-depth information

Read the whole article here: SiteProNews: Consider Font and Page Size When Writing for the Web