I'm cheating a bit and using Smack Jeeves as my main host: http://www.galebound.com/.
While I've got a server I could host it on myself (that's actually where the Extras page is hiding), I'm honestly pretty loathe to use Wordpress. I work in webhosting and dealing with hacked Wordpress sites all day has left me pretty jaded. So, speaking as a nerd, for the love of all the is good and holy keep that Wordpress installation and all of its plugins and themes up to date and keep backups. Please oh please oh please oh please. Speaking as a fellow creator, I actually don't know of any alternatives to Wordpress besides using a comic host like Smack Jeeves or Comic Fury :T
Back to being a nerd, I'm working on developing a webcomic CMS in Python+Flask for my own use (maybe with a no-support public release someday), prolly using disqus as the comment system, I'm just short on time. Also I have no skill in webdesign.
Anyway, back on topic, I'd recommend having an About page on the site. My typical "journey" for reading a comic on its own site is to read a couple pages, go check out the about page for a synopsis, and then resume reading if it sounds interesting. Tapastic provides a synopsis right on the page as you're reading, but it's handy to have the synopsis somewhere. A character page or section in the about is also nice, but don't get too wordy with it.
Oh yeah, and I also recommend adding your comic site to Comic Rocket. Makes it really easy for readers to keep track of updates and it may drive some traffic your way.