There should be a "none of the above" option -- some of us will be learning other stuff, but nothing on that list. Of course, I'm not one of those people.
There doesn't really need to be a "something else" option that indicates you should post your other choice. It depends on the point of the survey. If the point is to see which of the list items is the most popular choice, or something like that, then it's better off without a "something else" option. If, on the other hand, it's just to get some answers about what people want to learn, a "something else" option is important.
What I personally found missing, because it's what I would have chosen, is the ability to pick out more than one thing on the list.
|print substr("Just another Perl hacker", 0, -2);||- apotheon
CopyWrite Chad Perrin