when users post a url these are automatically converted to links. However, the links don't look very nice.
In Facebook and G+ links are viewed with a preview og image and a og preview text. I've wondered if this is possible with XF links, too. I found an addon showing previews in an overlay, but this is not what I have in mind.
Maybe the solution is a custom BB code where the callback function grabs the entire page and retrieves the og values. I'm not sure. Or is there any hook in XF to modify the link when it is created?