Decorating Virtual Classroom Walls

I love being able to decorate my virtual classroom walls! What are your virtual walls like? I just finished my "decorating" for Spring semester, using widgets created with tools like RotateContent.com, Feed2JS.org and other cool dynamic content tools (classroom2.0 blog post with details). What great web2.0 tools are you using to bring dynamic content to your classroom walls with images, words and so on??? (And will we ever be able to insert javascripts into classroom2.0, I wonder...? Even Blogger.com lets you insert javascript straight into the blog posts now!) Happy decorating, everybody!