You can also make a hyperlink by typing this, obviously without the stars:
[*url=http://www.google.com*]Linkie[*/url]
You'll get something like this:
Linkie
I will also say that anyone who ignores a comment warning telling them to fix their profile to stop it stretching will end up having their profile wiped completely. You don't want to have to put everything back, do you? Best thing is ensure that it doesn't happen by abiding by this rule.