Author Information Widget plugin for WordPress by dhoppe shows the “about me” text, gravatar and social network/contact links of one or more author(s) of your blog. You can add this widget to sidebars on author relevant sections, i.e. pages, posts or author archives. The Plug-in shows the name of the current author (current is the author who has written the current page/post or is chosen by “posts by”-URL), his or her “about me”-description (WP Admin » User » Your profile) and if you check it the plug-in will show the authors gravatar, website link, mail address, jabber profile, AOL IM, Yahoo IM and a link to the author archive in the blog.
Requires: PHP5 WordPress 2.9.2 or higher
Download and Info: http://wordpress.org/extend/plugins/author-info-widget/