I gave it a test-run of few weeks, but after that time, I have to admit I don't quite like to have the links truncated...
I'd propose to change the max-width: 24em;
to a more "flexible" max-width: 100%;
I don't remember exactly the original issue, but I think it was related to things like google search results that normally occupy multiple lines, like:
http://www.google.it/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&cad=rja&ved=0CDQQFjAC&url=http%3A%2F%2Fwww.searchenginejournal.com%2F200-parameters-in-google-algorithm%2F15457%2F&ei=Xa7rUsqbPKb0ygOXuIGoAg&usg=AFQjCNGonw1j7ar3MTGKKMLKpD2asTAxJA&bvm=bv.60444564,d.Yms
With the proposed the link would be no more than one line, but shorter links would still be visible, that would make easier to spot different links in list of links (yes, something not so frequent...).
What do you think?