When you use good fonts in articles either in print or in screen, it always makes a positive impression on the reader. Good fonts motivate a person to read the article from start to finish. Many times I have come across books - especially scientific journals which have a very small type face - so small that you end up squinting your eyes to read the text. In those circumstances, even if the article in question holds my interest, I usually pass it by or at the most just skim through the headings. Now a days most books that are printed have a good type face and the publishers have realized the advantages of using scientifically designed fonts to enhance the reading experience.
But selecting a good text type is not just imperative for printing, it holds equal importance in publishing articles for the web. Till a few years back, the font rendering in Linux was below par and the result was that viewing web pages was atmost lackluster. But now a days, rendering fonts in Linux has been significantly improved with support for anti-aliasing and sub pixel hinting that it has turned into a very good experience.
In a previous post titled "Optimal use of fonts in GNU/Linux", I had mentioned about all the facets related to fonts and how one can optimally use fonts in Linux. Now Juan Pablo De Gregorio blogs about the characteristics of good fonts and what fonts are good in a particular situation which makes an interesting read.