MWSnap is a reliable program that will "snap" a screenshot for you, and you can save it as a .jpg on your hard drive. It really comes in handy!
This software has been around for quite some time, and is very easy to use. Here is a MWSnap-ed screenshot that shows the Site 1 and Site 2 links you can download from:

The download does not contain adware or sypware, and is free. If you like it, donations are accepted to help fund the cost of the webspace the contains the download/updates.
From the MWSnap website:
"MWSnap is a small yet powerful Windows program for snapping (capturing) images from selected parts of the screen.
Current version is capable of capturing the whole desktop, a highlighted window, an active menu, a control, or a fixed or free rectangular part of the screen. MWSnap handles 5 most popular graphics formats and contains several graphical tools: a zoom, a ruler, a color picker and a window spy. It can be also used as a fast picture viewer or converter.
MWSnap does not require installation and does not need any special dlls, drivers or system files which can mess up your system."