use tinypic it doesnt require any signing up. then you just upload your pic and when your done it will show a few options and "img code for forums" will be the one you want. you dont even need to have the pictures on your computer if its a pic you find online just go to it right click and and select "copy image location" then upload with url on tinypic then enter the security captcha thing and you have your picture. or of course you can also upload from your computer. no email registration or anything like that is required. its also a good way to post pictures on forum sites as well.
You must be registered for see links
like that one, or of course
You must be registered for see images
you can post ponies!!