I have been asked a few time's how do I post a screen shot using linux?
Here's how I do it.
First we need Shutter.
To install shutter open terminal and type or copy and paste this.
sudo apt-get install shutter .
You will be asked for your root password.
Or you can find it in Software Manager
Once its downloaded and installed open it take your screen shot.
Next go to www.tinypic.com
Hit the browse button on the page and go to Home/Pictures, Select the picture you want then hit upload, You may need to enter a captcha code.
Now onto the tricky bit.
We need to post the Pic on BC.
Look for IMG Code for Forums & Message Boards its the second box down. Click it, and it will go black ( auto copy)
Now paste the IMG code into the reply box.