MotionTools and the Air Mouse app enable a presenter to turn their computer's cursor into a highlighter, laser pointer or pen.

ENGADGET: Movea turns your iPod touch or iPhone into an Air Mouse for just $2

Why be content with a liquid highlighter pen when somebody can come along and invent one that is dry even when you first apply it?

FORBES: Magazine Article

If you are able to walk away without yours hands covered in ink and highlighter, then you should go back and re-read the book because you missed the point!

FORBES: Book Review: Life After College by Jenny Blake

It included a copy of the book, of course, but also a few superuseless promotional items, including a black highlighter pen, and this version of the Superuseless Superpowers e-book.

FORBES: Superuseless Superpowers

As the name suggests, the former lets you mark up PDFs with text, arrows, shapes and highlighter tools, while the latter collates all the added notes into a single "summary" so users can get a visual overview of what's changed.

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