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The document summarizes the key advantages of the eBeam interactive whiteboard system over traditional fixed-size whiteboards. In 3 sentences: The eBeam system can be retrofitted to existing whiteboards and walls, works with or without a projector, and supports a projection area of up to 100 inches. It is portable, intuitive to use, durable, flexible in size and placement, and more cost effective to ship than fixed-size whiteboards. Additionally, the eBeam system is environmentally friendly as it reduces paper and toner usage, allows for digital sharing of notes, and can reuse existing whiteboards rather than requiring replacement.