Screen capture program with upload feature to image sharing sites

The title pretty much explains it ...

Anyone knows of any screen capture programs which offer a feature to upload the result to imageshack, or some similar site, and gives an URL, so it can be quickly used when composing webpages, or answering questions on SO/SU ?

The best, hands-down, is Jing.

Have you looked at Jing?

Aviary.com allows you to do screen capture. You can save the files to your clipboard, desktop, or online.

For web stuff, there's no software to install. You capture any webpage by adding Aviary.com/ to the beginning of the URL.

To capture http://google.com you type Aviary.com/http://google.com

Or access the tools via their website or one of their browser extensions.

Here's a new one-click easy image uploader.