XTools/Blame

The Blame tool lets you find edits made to a page that added the given text. This can be used for example to identify who added vandalism sentence to an article.

From the main form, you can run Blame against the latest revision, a revision ID, or a date.

This tool is powered by WikiWho.

Summary
Summarizes the requested data.

List of edits
Each edit has a heading with the timestamp. The timestamp is a link to that edit on the wiki. Beneath this is the basic info on who made the edit, the timestamp, and the edit summary, followed by a the diff itself.

You can hide/show each result using the [hide]/[show] links in the heading next to the timestamp.