Laptop phone cards, Profiles in IT (Marc Andreessen, Co-founder Netscape), Back-to-the-future Email, Ubuntu 8.04 Reviewed, Eighteenth Century e-mail (optical telegraph), Large Hadron Collider (open house, optical data grid), Wireshark 1.0 (free network protocoal analyzer) released, and removing phone number from Google database. This show originally aired on Saturday, April 19, 2008, at 9:00 AM EST on 3WT Radio (WWWT).