Very nice and useful website. Couple of points:

  * The input box for the logo name is not obvious.
  * The options on the left hand side are quite techy. I don't understand how they can help.
  * Do all the four drop down boxes on the bottom work together? Or is it one font at a time only? The default view shows four active fonts. I was thinking that there was some cool algorithm which 'mixes' fonts. Is there any?