Sorry, I know this is an old thread but just to update- I've been watching the recommended titles section since the webtoons contest 2018 began. Here's what I've seen: During the contest's first round they would feature comics randomly for about three days. After that round was over it took them about a month to change the recommended titles again, however, since then they have changed the titles about every week. I say "about" because its not 7 days exactly. Sometimes they update it in 8 or 9 days. The titles and genres they pick out to recommend seem pretty scattered and random but I did notice they featured one comic twice in a row. My comic "Enjoy the Show!" is currently a recommended title, it'll be interesting to see exactly how many days they leave it up! LOL