There are many tools available that will enable you to take snapshots of your own webpage. With these tools you can capture whole or part of your website page and further modify them like any other image that you regularly work with. You can then upload the image of your website to other sites. This way you can provide a glimpse or the general profile of your website to others for easy and quick reference.
Save As Image- This is a firefox add-on that lets you save the whole page, frame or part of either as an image.
Picnik for firefox- With this firefox add-on you can take screenshots of your website and import them to the online image editor Picnik for further editing.
Pearl Crescent Page Saver- An extension for firefox, this lets you to capture the whole page or part of it with the capability of resizing the the captured image which is in PNG or JPEG format.
Snissa- A simple firefox plugin that is used for taking website screenshots.
Screengrap!- This will save what is visible in the window, the entire page, just a selection or a particular frame of the webpage as images.
ieSnapshotter-This is a plugin for Internet Explorer that lets you capture the whole website or just the visible portion of the website as image files. This tool also lets you create thumbnails of the webpages. You can even resize the images according to your taste and feel.
SnagIt- A great tool for handling all those image editing tasks. With this screen capture cum image editor, you can instantly take photoshot of your webpage and then edit it in the format of your choice.
FastStone- This powerful utility not only has the capability of capturing screenshost of your webpage but can also capture your windows screen, objects, menus, rectangular and freehand regions.
WebShotsPro- Just enter url of any website and then get the screenshot of that website. You might not get the screenshot in an instant if you encounter a long queue.
Thumbalizr- This also works similar to WebShotPro. You enter the url of the desired website to get its screenshot. You can choose to get the screenshot of just a screen or the entire webpage.
