Lackadaisy
Lackadaisy is a comic about cats, gangsters, and speakeasies. It isn't updated much these days, but it's still worth running through the archives and subscribing.
Rocket Llama
Rocket Llama is a little more than a webcomic. It's a big, fancy site with other non-webcomic things.
Ozy and Millie
I don't know if the comic is entertaining, but I do like the art. It's not being updated as of the time I wrote this.