You've probably already seen Twitter's latest feature: the image preview pane. When you upload an image with your tweet, Twitter automatically crops a section of it and displays it as a 440x220 pixel preview in the Twitter stream. This means people can see your pictures, infographics and other images without having to click on a link first. But there's a one slight drawback, Twitter tries to crop your image intelligently. Twitter looks for dominant visual elements in the images and crops that section. If it can't find a dominant element Twitter tends to crop the middle of the picture instead which can botch the first impression of your beautiful photo. So how to get Twitter to crop the area you want. Here's a handy infographic from bob_watling, that looks at how to optimize your images so they looks better on Twitter.
image by: theskimonster infographic by bob_watling