If you are going to request that your users submit large blocks of text, you may want to include a larger area for them to type, instead of a small input box. The textarea tag requires attributes that determine it's length (cols) and it's height (rows). The code that follows will give you a text box that is 5 lines tall and 80 characters wide, and contains the words "Type your information here," which the user may replace.
<textarea rows="5" cols="80">Type your information here</textarea>