[kuschku]

Not really. Generally, ALL CAPS and italic are preferred over bold (as both are specially cut for that, and keep the contrast roughly the same), but bold is not bad either (and for sans serif, always choose bold over italic). Compare with: http://practicaltypography.com/bold-or-italic.html

What you definitely shouldn’t do is underlining, though: http://practicaltypography.com/underlining.html

[dmitrygr]

Both of your links redirect to: http://practicaltypography.com/graylist.html, which lacks useful content

[eridius]

Maybe that's a random redirect? Both of the original links work just fine for me.

[vbernat]

You need to copy/paste the links to avoid to send a Referrer header.