The Explainer Team at the online magazine Slate took up that question, and here with the answer is Slate's Andy Bowers.

NPR: Slate's Explainer: Iraq's Shiite and Sunni Muslims

Watch the video below, or check out this handy explainer, Consumer Financial Protection Bureau 101: Why We Need a Consumer Watchdog.

WHITEHOUSE: Our Top Stories

Felten has an explainer post here about how MySpace messed up.

FORBES: The FTC Has Faith That MySpace Will Still Be Around In 2032

Or "Virtual Water, " a wall chart which transforms arcane UNESCO data about water usage into a simple explainer about water consumption.

CNN: Green designs that don't cost the Earth

That got the explainer team at the online magazine Slate wondering what will the Democrats do if Senator Lieberman wins as an independent.

NPR: Sen. Lieberman's Future Democratic Relations

You'd think after publishing a 6, 000-word review, two hands-on posts and a camera explainer, we would have said all there is to say about the HTC One.

ENGADGET

That explainer was compiled by Daniel Engber.

NPR: Sen. Lieberman's Future Democratic Relations

She spoke to coaches, such as George Block of San Antonio, Texas, who was recommended as an excellent explainer, and Jane Katz, a New York expert, who offered an array of small tips to make her more agile.

ECONOMIST: Lynn Sherr��s new book offers all the skinny on dipping