Building any kind of web page can be a daunting task, especially if you have no computer skills whatsoever, that doesn't mean that it's beyond the power of the least computer savvy among you. In fact, there are a lot of simple options for simple online blogs, web pages, and forums. Running a forum is probably beyond the scope of our little project, so we'll focus on how you can put up a web page focused on role playing and other realms of geekdom.
First, you need to pick a role playing system. We need to show some focus to begin with, although after you've got the basics down, feel free to make a web page for every type of role playing game under the sun. Since it matters very little, I'll go with my favorite and write about D&D 3.5 addition.
Second, pick a free web hosting method. There are interactive blogs at Triond.com that are worth checking out, there there's always MyYahoo! pages, googlesites, or the option of getting your own web address. Even getting your own web address isn't very hard, but for the time being let's go with googlesites since it's the site making utility I'm most familiar with.
Third, make your website. "Now wait a minute!" You may be saying. Well, you're right, it isn't quite that simple, but it ALMOST is. On googlesites, you'll quickly get familiar with a number of options across the top of the screen. One of these is edit and allows you to mess with the webpage. You can go in, determine the format, whether that's mostly pictures, a big blog area, or title page with links to other pages. In Googlesites, you have to make each individual web page of your website before you can link it back to whatever you've made your main page. Most of this is done through either the edit sidebar button to the left (initially at least) of the page under the initially empty sidebar or through the edit page button appearing at the top right hand. I recommend you thrash around at that a bit, practicing adding titles, changing fonts, etc. So fast as fonts and templates, it actually works pretty much like Microsoft Word, so opening a How To on changing fonts might be worthwhile at this point.
Fourth, add content. One assumes that by this time you have a lovely title page with something like "ReAlMs of GeEkDoM: An overview of why D&D 3.5 is better than 4.0" as the title and a few happy clicky buttons, maybe a dancing alien or the like, and maybe space for a couple other pages. Now you'll want to surf the web for pictures. Just google some images and use them, with proper acknowledgments of course. You can probably find some link buttons to link to your favorite websites. In fact, most websites not only give you the link, many of them will give you instructions on how to add it. This sometimes requires copying and pasting large blocks of html code, but don't worry about understanding it. Just put it where you want it and call it good. Now upload some files with your own special improvements on the nature of D&D 3.5 (or whatever system) and explain why such and such rule/monster/class is broken/underpowered/inappropriate and voila! You now have a role playing web site. Welcome to geekdom.