I have had this crazy interest in learning to design web pages (probably cuz mine stinks). It's not like I have oodles of free time, but I decided I'd start at my own pace and maybe someday I'll like how my website looks... Plus, I figure web design would be a great skill to have.
So, right now I'm taking a free XHTML class from about.com. It's got 10 lessons that I can do at my own pace. At the end there is a test that if I pass, I'll feel happy about. It's not like a college degree or anything, but really if someone wants you to design their web page, I think they care more about whether or not you can do it, not that you went to Harvard to learn how to do it.
Next I plan on going to Google Code University (free too) to learn more about programming languages for web design: JAVA, CSS...
And this is the beauty of the internet: Information at your fingertips!