Say that you've been doing your webcomic/novel for, say, a year, maybe two. It's doing decent numbers but could stand to do better. So what's a good way to promote your comic besides the standard social media boost?
Why not create a page about your work on TV Tropes?
I'm only bringing this up because -- as a regular user of that site -- I've discovered a few works on there. So why not take a crack at it?
(Oh, and if you're curious, here's Tapas' page on TV Tropes and several titles with their own pages on there.)