Adsense Under Image : This plugin places adsense under the first image in a post.
LastPostsImage: This WordPress plugin provides a customizable image always showing the last posts of your blog. It can be used as signature in communities.
Local Analytics: Local Analytics is a Wordpress plugin for integrating Google Analytics, the free web analysis service by [...]

Have you ever noticed that trackbacks are displayed between comments in the most of blogs. That can cause difficulties for your readers those who are following a conversation between comments.