Font is one of the most important parts of any website. It determines the entire experience of digesting content and offers either an enhancement of thought transfer or a complete break down of message transfer. Oftentimes it is just a slight change that makes all the difference.
So which web fonts to choose?
As a general rule of thumb, serif fonts are more formal and non-serif fonts are less formal. A good example of serif is Times New Roman, which has the little curly elements on the end of each part of each letter. Non-serif fonts do not have the extra curly elements on the end of each part of each letter, such as Arial.
Web fonts are available at many different places on the web, but the place I recommend to get fonts easily and for free is Google Fonts.