Link words to external URLs in
Wiki Syntax, resulting in:
<a href="http://www.some.long.long.url/lorem/ipsum.html">Ipsum-Link</a>
Syntax Proposal might be:
[[http://www.some.long.long.url/lorem/ipsum.html"|Ipsum-Link]]
or (which i prefer)
"Ipsum-Link":http://www.some.long.long.url/lorem/ipsum.html"