Facebook has over half a billion registered users. That's millions of people from around the world logging in every single day. From a business perspective, that's a super-huge market opportunity. Imagine where it could take your webcomic if you could just direct these millions of Facebookers to your website. You are going to be rich, that's for sure. There is however no known key yet in getting those millions of people to go to your webcomic and do business with you.
There are however a few things that you can do with Facebook to direct hundreds if not thousands of traffic to your webcomic. And one of these is by creating a Facebook Page for it. A Facebook Page is in many ways very similar to a Facebook Profile but it's different in some aspects. First, anyone online can view the page. It doesn't matter if they are Facebook users or not. And second, Facebook users can become fans of it or start "Liking" it.
As a webcomic artist, it is your goal to expose your work to as many people as possible. A Facebook Page can help you a lot in this. It is very easy to share content on Facebook. Just a click from a user and something is shared to that user's hundreds of friends. So take advantage of the resources that a Facebook Page offers and create one for your webcomic.
All you have to do is login to your Facebook account, go to the Ads and Pages section and click on "Create Page". Enter the most important details about your webcomic most especially the webcomic URL.
Once your Page is set up, you can then start connecting with potential readers by importing the content of your webcomic so that ever time your webcomic is updated, so does your Facebook Page.
To gather more "Likes", grab the widget provided by Facebook and place it on your webcomic. It's all just a matter of copy pasting some code.
The best thing about a Facebook Page is that it's free. You don't have to pay anything just so you can use it.