One of my favourite blogs is ilovetypography.com. A recent post talks about choosing the right typeface for the job, be it print or online.
The entry’s first guideline is to ‘honour content’, because some typefaces that look good on paper look awful on screen. If it’s not readable, your copy is wasted!
The writer adds that ‘choosing type for the web is easier owing to fewer choices’. It is generally agreed that san-serif fonts are better for page copy for all site visitors to read. They are better for dyslexic readers, for example, because letters are less pixellated and therefore sharper than many serif fonts.
The post adds that these choices are beginning to increase, due to ‘sIFR and ‘web fonts’, so it’s all the more important to think carefully about the type we use’.