Sans Serif
Sans Serif in large part is the font type most associated with the web.
Tests have shown that it is easier to read sans serif text on screen. It is suggested that you use sans serif for all of your copy.
text font readability study
online demo serif vs sans serif
use sans serif for your web site
There are many sites that still use a serif for their copy but the rule of thumb is that if the text is 16px or under use sans serif.
