Contact Tab is a free wordpress plugin add a slides out contact form to WordPress site
Slides out when tab on left/right of page/post is clicked
Slides in after successful completion of form
Includes three fields- name, email , textbox for message
Captcha to prevent spam (captcha is optional)
Ajax form submit
Appearance of Contact tab such as text color, background color etc can be customized.
Email sent can be forwarded to an additional email address besides the WordPress admin email account.
Social networking buttons