I recently got very near my 1000 photo limit on Flickr, and jumped over to Imgur.com to get some more free image space.
Posting with Imgur is pretty easy. You need an account, so hop on over and get you one, while I wait..... While I'm waiting for you, I'll mention that I'm only demonstrating how to use Imgur as a means for displaying photos on this board. There are other features you might be interested in, but you're on your own there.
1. Once you have the account, upload your photos to Imgur via the big green "Add Images" bar. Drag and drop your images to the little upload window.
2. Click on the image you uploaded that you want to post, and look down the list to "BBCode". Click on "copy".
3. Go back to the post you want to add a photo to, and paste the bb code on a new line. On a PC, it's right click and select "paste".
Please let me know if you run into problems with this. I'll try to help.