http://pdnfans.proboards.com/thread/291/creating-thumbnail-imgur-image-hosting
For the short story, if you want to share an image from imgur, and want to show a thumbnail with a link to full size, do this.
- copy the page's URL from your browser address bar.
- paste it into a Notepad empty document (to make it easier) and add an l (small letter "L") at the end, followed by .jpg - this will give you the thumbnail which fits best with this forum's rules (640x640)
- put [img] at the beginning and [/img] at the end - this creates the tag for sharing on the forum.
- put [url=] at the beginning and [/url] at the end.
- in the first tag, between the = and the ] paste the initial page address you copied, follwed by .jpg
this will create the actual click-able link to the full size image.
at the end you should end up with something very similar to this
[url=http://i.imgur.com/1234.jpg][img]http://i.imgur.com/1234l.jpg[/img][/url]
Notice the small "L" which makes the difference between the link to full size and to the thumbnail.
Hope this helps!
Cheers