Dot - yes if I click on the links I see the photos fine. Look good too.
You can embed photos from Dropbox in a post. Takes a little bit of tweaking but not too difficult. You just need to modify the dropbox link which I have described below. The photo you see below is from my dropbox account.
"[url*]https://www.dropbox.com/s/i58k4aqxeme929k/kangaroo%20com.jpg?dl=0[/url]"
I had to replace various bits of the address above. I changed URL with IMG and WWW with DL and removed the ?dl=0 and the image appears. I put a * after IMG so you can see the link.
The good thing about dropbox is that the photo you upload is the photo that gets posted. I think I am going to just use Dropbox from now on. I'm sick of seeing all my photos being lost to this forum.
[img*]https://dl.dropbox.com/s/e1p4zucypdplon2/DSC_5552%20com.jpg[/img]