Read my new book Barcodes with iOS 7! It will open your eyes to the great potential to interact with physical products now that everybody has a barcode scanner in their pocket!
Q&A for professional and enthusiast programmers
Q&A for linguists, etymologists, and serious English language enthusiasts
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Q&A for professional programmers interested in conceptual questions about software development