Webtoons is the shorter version for "Web cartoons." They are manhwas in another way because they are made by Koreans. Some famous webtoons I know are Noblesse, Tower of God, Soul Cartel, Trump!, and Black Haze.
They are really good. Worth-reading! They also appear in colored graphics. So have you tried reading some of them? Mind sharing your favorite Webtoons?
I love 19 days!! XD But I haven't read the yuri one yet.
These days, the only Korean webtoons I've been reading are comedy, like "The sound of your heart", "3 second strip", and "10th demension boys" (but it get too repetative), etc.