1.
www.imgur.com2. Upload image from computer (button on the top right)
3. Select image, and 'open'.
4. Window will pop up. Click 'start upload' button.
Wait....
5. New screen. Shows picture, and a bunch of links on the right of it.
You can choose different sizes for your photo to link. At the bottom of the links you'll see a little menu that says
Sizes: Original - Small Square - Large Thumbnail - More.
Large thumbnail usually is good enough for sizing and is the size I posted below.
6. Find the one that says 'BBCode'. Should look something like this: [IMG ]http://i.imgur.com/kVSJ2eO.jpg[ /IMG]
7. Copy + paste into your post.