Preserving Old Research Notes and Documents?

twistedcubic asks: "I have several thousand 8.5 x 11 inch dead tree pages of notes and research that takes up too much storage space. I would like to have all these notes scanned into PDF files (for example) so I can recycle the pages and reclaim storage space. Does anyone know of a store that provides this service, or an inexpensive machine that will do the job in a reasonable amount of time?"