Webshot

You have probably heard of print screen (screen shot) which basically allow you to capture what you see on screen.

Print screen (often abbreviated Prt Scr, Print Scrn, Prt Scn, Prt Sc or Prnt Scrn) is a key present on most keyboards, typically situated in the same section as the break key and scroll lock key.

However sometime you would want to 'screen shot' a whole webpage which its length is more than 1 single page (with scroll down bar), and this free tools may aid you. It is called Webshot.

WebShot allows you to take screenshots of web pages and save them as full sized images or thumbnails. Screenshots images can be output in the JPG, GIF, PNG, or BMP formats

You can download it here
http://www.websitescreenshots.com/Default.aspx#download