Very true, and if I had to distill the advice in the article down, most developers would go far by starting with these guidelines:
1) only use serifs for headings.
2) only use sans-serifs for body copy.
3) keep the number of different fonts on the page under 3 at most, including the logo and any other graphic flourishes.
See:
http://scholar.lib.vt.edu/theses/available/etd-102999-110544... (PDF)
http://www.laurenscharff.com/research/AHNCUR.html
http://sigchi.org/chi95/Electronic/documnts/intpost/tst_bdy....
http://www.surl.org/usabilitynews/22/font.asp
https://eldorado.tu-dortmund.de/dspace/bitstream/2003/24419/... (PDF, German)
http://www.designtagebuch.de/die-gefuehlte-lesbarkeit/ (German)
Very true, and if I had to distill the advice in the article down, most developers would go far by starting with these guidelines:
1) only use serifs for headings.
2) only use sans-serifs for body copy.
3) keep the number of different fonts on the page under 3 at most, including the logo and any other graphic flourishes.