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This web page digitaldocumentcamera.blogspot.com states the following, "Welcome to source of information about Digital Document Camera." We saw that the webpage said " Digital Document Camera is a interactive teaching, training,and presentation tool for teachers, trainers and presenters around the globe." It also said " Monday, July 18, 2011. The ELMO TT-12 document camera. 12x optical zoom, 8x digital zoom total of 96x zoom. 30 frames per second real time image. XGA, WXGA, SXGA, 720p and 1080p output resolution. New Image Mate software with audio and video recording." The header had document camera as the highest ranking optimized keyword. It is followed by digital document camera, digital visual presenters, and digital visualizers which isn't as ranked as highly as document camera. The next words digitaldocumentcamera.blogspot.com used was digital visualisers.