Barcodes

GNU Barcode - barcode printer		GNU Barcode is a tool to convert text strings to printed bars. It supports UPC, EAN, ISBN, CODE39, and other codes via Postscript or EPS output. Bars can be positioned/sized by inches, cm, or mm. GNU Freeware. (May 2000)
TecIt - barcode programming components		Provides professional software components for integration of barcodes into your application. From ActiveX Controls and bar code DLL's up to SAP R/3 barcode extensions. Demo versions available, DLLs from $70 (Feb 2002)
Books about Barcodes		A complete list of books on Barcodes available through Amazon.COM