The Big Four

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Reddit: A Beginner's Guide. Update: This post was updated October 2013 to reflect current statistics and tools.

Reddit: A Beginner's Guide

To the uninitiated, Reddit looks like a mess — text links, comment threads, points, upvotes, downvotes. At best, posts seem contextless — at worst, totally random. But spend some quality time with "The Front Page of the Internet," and you'll find it's an essential resource, a self-correcting marketplace of ideas that's nearly impervious to marketers. Simply put, Reddit is a message board wherein users submit links.

Pinterest

Comparisons. Facebook. Linked In. Twitter. This is NOT a tech bubble --The Buzz - Feb. 6. The Nasdaq is trading at its highest level since December 2000 ... but tech stocks are still way below their March 2000 dot-com bubble peaks.

This is NOT a tech bubble --The Buzz - Feb. 6

NEW YORK (CNNMoney) -- The Nasdaq is at its highest level since the end of 2000. Highly speculative companies like Netflix (NFLX) and Zynga (ZNGA) are soaring, and investors are salivating about possibly paying 100 times earnings for Facebook when it goes public. If you want to declare that tech stocks are once again a bubble ... you'd be dead wrong. Tech's Next Bubble: Where Will It Come From?

Microsoft

Apple. Amazon. Google.