Blixy is a fun site full of great little widgets that can be used on your web page.
One of my favorite widgets on this site is the Zoom Text widget which would be a great way to share spelling or vocabulary words.
To create a zoom word wall, you simply choose your color background and text color and type in your words. Once you finish entering your words you will be given an HTML code. To add the wall to your web page, simply copy this code and paste it on a blank page on your First Class web page. Then highlight the code, go to Format> Style> Literal HTML. The font will change a bit and when you save and view in your browser you will see your zoom text wall!