Witheringtree blog has posted a plugin to add Lightbox type effects for images, videos (FLV, MOV, AVI, WMV, etc), SWF, inline content, and web pages. You can read more about it at http://www.witheringtree.com/page.cfm/source/mango-blog/shadowbox
Andrea Campolonghi has created a plugin that will let you add Text Ads in a pod for your blog.
Read more and download from Andrea's post.
John Gag has made some updates to his shareMe plugin that allows you to choose which icons to include in the sharing website list at the bottom of the post. You can download the update and read more from his blog post.