Thanks to Elad you can embed slideshows into WordPress MU

If you use WordPress MU and want to easily embed slideshare slideshows into your posts, then use this plugin that from Elad. We recently released an embed code for wordpress.com which is already seeing a lot of use, and we are excited that WordPress MU users can do SlideShare embeds as well. Thanks Elad!
If you use a blogging platform that does not support SlideShare embeds, then let us know. We are making a special effort to work with all the blogging platforms to make sure that our users can embed slideshows into their blogs.