Stumble Upon is, in essence, a web app. You go to the website, click a button, and it leads you to websites based on the criteria you entered. Yesterday, I was clearing out my bookmarks when I found a folder with all the links I came across a long time ago using Stumble Upon. Here at the 5 ones I liked the most, in no particular order.

How to be a successful Evil Overlord.

So the title says it all. This link tells you in excruciating detail how best to ensure your tenure as an evil overlord is successful. Bear in mind that it is a bit outdated, and meant as a joke.

The Black Hole

Is it possible that having to create a room with a mostly-continuous line of sight while creating a spot where there is no light? Click on the link to find out.

List of Google Search Easter Eggs

Google has a habit of putting pop culture references, minigames, etc all over the web, which can be entered by searching the right phrase. Like searching "Breakout" on Google Images will launch a Atari Breakout game.

Zipdecode

Someone, somewhere,(Ben Fry) thought it would be a good idea to create a searchable map of all US zip codes. Not only will the map tell you where the zip code is, but it has nice animations too. He has a lot of other projects that were made out of curiosity, but can be accessed by everyone.

Wikipedia: Unusual articles

Wikipedia has thousands upon thousands of articles about literally anything. This list is a few hundred of them that Wikipedia thought were particularly interesting/insane. For example. did you know there is a town called Truth or Consequences in New Mexico? Or that The Magic Roundabout in Britain is actually 5 traffic circles around a 6th traffic circle, and somehow this mess has one of the best safety records in the entire country?