Textlink Adder generates your very own textlinks to each single post your wordpress has to offer. Bind as many textlinks as you want to each post.
Raven’s antispam is a smart antispam based on a JS solution of Jakub Vrana.
AnswerTips are small bubbles of information triggered by double-clicking any word on an AnswerTips-enabled page.
SEO-Plugin allows you to add Meta tags for Description and Keywords to your blog. (Site in German)