Snap a photo of the whiteboard, then download it to your computer. You then can print the image. Or, if you write legibly and have optical character-recognition software, you can turn the image into a text document.
Turn a picture into a PDF. If you have a digital camera or cell-phone camera with at least 1.0 megapixel resolution, try Scanr (www.scanr.com).
Here’s how it works: Just send your whiteboard photo to Scanr by e-mail (or upload it by phone) and the service will e-mail it back to you as a crisp, PDF document. All for free.
Take the session online. Free online whiteboards are available through Writeboard (www.writeboard.com) and Google’s Writely (docs.google.com). Use a small projector and run whiteboard sessions on a computer, remembering to save once the session is done. Downside: Attendees won’t get to doodle with markers.