Plugins
1.
Wavr
A google wave plugin for Wordpress
2.
Hobbity
A robot to make the urls shorten in the waves
3.
Drupal Waves
Adding Wave to Drupal
4.
Bloggy
Publishes the contents of a wave to your blog.
5.
Grails
Integrate Google Wave Robots and Wave Embed API with your Grails application
6.
Polly
Adding Polls to your Wave
7.
Coin Toss Gadget
Some fun, still useful
8.
Tweety
Tweet from Wave, Live twitter search from Wave...