The ability to use Google Fonts makes Web Design really easy and fun.

I don't know about you, but I think that sans serif fonts are the easiest to read; not just online, but all the time.

An article on the Adobe website says "Sans serif fonts also work well where there’s very little room for copy. Signs, text in apps, and names on maps tend to be sans serif. (There are exceptions, of course. Some sans serif font families, like Arial, are meant to work as body copy — text that goes on for more than a sentence or two.)"

Google Fonts can make suggested font pairings that will look good together.

Google Fonts will even suggest serif fonts that pair well with sans serif ones.

Again, this advice comes from the Adobe website: "Ultimately, finding the right font is about balancing whether it will be used in body text, the user experience you want, and the attitude you’re trying to convey. There’s a time and place for both serif and sans serif, and knowing when to make the call between them is a key skill for any designer."