I use "Tinypic.com" cause it lets you share larger photos. Some web sites limit you to medium sized pictures. When you put something on TinyPic, the"Image code for Forums & Message Boards" to put in your post is right there on the page which is created for your new image, you just copy it and past it in your post.
Easy peasy once you get the hang of it. And you can link to a very high res image that sort of crashes the ecomodder site.
Try This Link
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Hope this helps. If you need more detail let me know.