links for 2010-03-28

QRCode best practices, a wiki created last year by Brian Suda

"The tricky thing that holds back the paperNet is both data and scale. It is relatively easy for someone to print out a sheet of paper at home, but it is more difficult to populate that paper with interesting statistics and worthwhile information. Home printers don’t scale…" "Enter Newspaper Club."

"[The] intersection between The Internet, print on demand and hyperlocal data sources."

"spacetimeid is very simple web application to encode and decode unique 64-bit numeric identifiers for a combined set of x, y and z coordinates."