With a PurpleBunny, you can quickly and easily read and write comments about the Web page you're viewing. You can praise a page, ask a question, read comments about an entire site, or discuss the content of a Web page with other Web surfers. PurpleBunny stores these comments in a centralized location for easy access, and the handy toolbar alerts you when a page you're viewing has comments.
Using PurpleBunny is like writing notes for future readers in the margin of a library book, but without messing up the original material. Plus, it's more organized, PurpleBunny groups comments by Web site, and you can also sort all comments or search for specific keywords. Version 1.2 works with Firefox 2.