HowStuffWorks was probably the site I visited most through middle school and a good bit of high school. Wikipedia has largely replaced it, at least in my experience.
Considering they raised $120 million in VC, is a $250 million acquistion a major success? The founders are probably rich now, but for the investors, it doesn't seem much better than breaking even (especially since the site is ten years old). What did they need $120 million for, anyway?