Need web site screen shot? Thumbalizr may help you
Thumbalizr is a new tool on Internet that allows its user to take screen shot of web sites for free which could be further used for documentation and presentations. Its very simple to use.. no login required and work directly from home page. Moreover that user has option to take the screen shot of whole page or only screen view with different resolutions as needed. The one thing I don't like about this is that its damn slow. This is currently in alpha phase, so no idea how long they will go.
Here is the thumb of my blog taken using thumbalizr: