A website is an extremely important feature for any MMORPG, and is very useful to both complete games and those in development. A website is great for establishing a community, and can even help you develop funds for your project.

Builders
Not everyone has website development skills, and many free website creation portals are unstable and plaster your site with unsightly ads. Luckily, you can create a great, feature packed site no matter what your budget.

The best free service for creating your website is Weebly. This service offers brilliant website creation tools, embedded blogs, videos, galleries, forums and more. There are a few incentives to purchase an upgraded account, such as removal of the Weebly branding from the site footer, and you might want to consider upgrading from the sub-domain to a proper address in the future. Importantly, there are no ads, and your site has unlimited data transfer -- all for free.

Hosting
If you have some website development skills, MaiaHost is a brilliant hosting service with very affordable pricing. They offer unlimited storage and transfer, and you even get a proper domain name of your choice, plus stacks more at a very affordable price.

What To Include?
Once you're site is online, you should try to implement relevant pages to promote your MMORPG. Content is the key to creating a successful website, but game sites should also aim to create a striking visual appearance. Be sure to create a screenshot gallery and if possible integrate some game art into the website background.

You can also develop a wiki for your site and encourage the community to develop content for the wiki. Establishing a community is a great way to allow your visitors and players to get involved with the game's development, and ensures your site gets return visitors and maintained interest.

Extras
You might want to considering implementing a mailing list service. Mailing lists are a good tool for drawing visitors back to your site in the form of email updates. Aweber is one of the most respected providers of mailing lists online. A forum is also a good idea...try implementing phpBB, a great free forum!