I receive words of the day from Wordsmith and Word du Jour which are both free email services. I print them out and back them with colorful construction paper to make great bulletin board displays. I staple them on the board in unusual ways such as at an angle or upside down. The kids get a kick out of reading them and they're learning in the process. Wordsmith and Word du Jour also contain a sample sentence or two using the word of the day so my kids get spelling, pronunciation, definition and usage all in one simple form. The bulletin board grows as more words are added. My word board expands onto the wall around it thanks to a little masking tape rolled on the back.