Fun and interactive. This site encourages students to work on Haiku, Cinquain, Limerick or Free Verse. It give support and explaination of what each type of poetry is.
http://teacher.scholastic.com/writewit/poetry/poetry_engine.htm
Go here to read Haiku from students
A collection of Limericks
http://poetry-online.org/limericks.htm
How to write a limerick
http://dltk-holidays.com/patrick/m-limerick.htm
http://ettcweb.lr.k12.nj.us/forms/newpoem.htm
Magnetic Poetry Kits - fun for SB and centers
http://kids.magpogames.com/playonline.cfm
A text editor for poems with tools including rhyme helper and syllable count.
I know several of you have been teaching units or plan to teach poetry units. This is a tool that you may find beneficial to help students with counting syllables and rhyming scheme. As students type their poetry into the text box Tranquity counts the syllables on the left and on the right it suggest rhyming words as they type.