Infographic of the Day: Should You Use Yahoo Answers, Metafilter, or Aardvark?

Infographic of the Day: Should You Use Yahoo Answers, Metafilter, or Aardvark?

In the past few years, the quirky genius of Metafilter, which lets you pose a question to the community and allows anyone to answer, has blossomed into a full-on industry. These days, there's Hunch, Yahoo Answers, Aardvark, Quora, and Facebook Questions, just to name a few. But each one has a different community culture. So if you're looking for answers, which do you use?

Here's a graph that lays it all out:

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Infographic of the Day: Frog Design Makes Twitter Activity Gorgeous

Infographic of the Day: Frog Design Makes Twitter Activity Gorgeous

We've featured a slew of Twitter visualizations, but you'll probably agree that this is the most beautiful and hypnotizing.

Designed by Frog's office in Milan, A World of Tweets simply visualizes real-time Twitter activity around the world. Tweets are shown as raindrops falling across the globe. But what's more, the longer you let the visualization run, the better it gets -- the rain drops add up, building you a real time heatmap of worldwide Twitter activity.

Infographic: What Were Social Networks Like, for Great Minds Like Newton and Voltaire?

Infographic: What Were Social Networks Like, for Great Minds Like Newton and Voltaire?

Think having 5000 Facebook friends is impressive? What if you had to maintain those relationships with status updates that took weeks or months to arrive? That wasn't a problem for literati in the 1700s, who managed to maintain impressive social networks with handwritten letters.

A team from Stanford has mapped this "social graph" in an interactive graphic that visualizes 55,000 letters exchanged between 6400 correspondents. Here's the dashboard for 1700 to 1801:

Infographic of the Day: Which Countries Force Kids to Work?

Infographic of the Day: Which Countries Force Kids to Work?

Remember a few years back, when big companies such as Nike kept getting immersed in sweatshop scandals? You hardly hear about that sort of stuff anymore. But the fact is, child labor and forced labor remain startlingly common throughout the developing world.

This superb interactive chart shows you everything you need to know, from the countries where child and forced labor are most prevalent, to what exactly is being made -- the point being to better inform people, so that they can avoid such goods.