Zscreen is an excellent screen capture software for Windows plateform. The combination of the screenshot function with the upload is very convenient and makes life considerably easier.
There is an integrated FTP module allows direct photo upload to the FTP server. The screenshots can be uploaded to Tinypic, Imageshack or other photo services (Imagehoster) uploaded - it is also possible to configure your own photo services manually or use the Twitter client.The handling of the freeware is very simple. With the three different shooting modes, you can demand the active window, capture a selected area or the whole screen.
Zscreen also comes with integrated editor where you can Edit and tag your images with text annotations. ZScreen also supports computers with multiple monitors, and can automatically add watermark images.