About.com: expert guidance from real people searching the Internet for the information, goods, and services that you need to know related to your passion.
Learn how to do just about everything at eHow, the world's most popular place to find How To instructions. New on eHow: Publish your own articles and How To videos. It's easy and it's free!
Infoplease.com, a free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainme...
HowStuffWorks explains hundreds of subjects, from car engines to lock-picking to ESP, using clear language and tons of illustrations. We do the research so you don't have to.
SoYouWanna teaches you how to do all the things nobody taught you in school. From work to wine, apartment rentals to toning your abs ... learn it all with SoYouWanna!
This is a site where you can get good practical info on just about any topic you can think of! You MUST bookmark it (I have it bookmarked under "Reference")
A useful resource: I don't know exactly how or where about.com gets all of its content. But I do know that it has simple, useful articles on almost every subject I search for. I've used it help make travel plans, research snowboards, and compare universities.
My biggest complaint is the site's layout -- way too many ads and articles are often spread over multiple pages to increase the ads count. It's annoying but still a useful resource.
Annoying but useful: It annoys me when about.com articles are in the top of my google search and so it annoys me even more to admit that most of the time the articles are useful. I think the reason I dislike using it has to do with the layout of the site. But I always feel tricked into learning.