How do you Know your Friend Saw your Note?
2,244 views · Published 6 July 2008 · 5:33 · Indexed 23 October 2026
Channel: Chris Pirillo · 2008 · Science & Technology
http://live.pirillo.com - Have you ever sent an important message, only to have the recipient later say they never received it? You're pretty sure that they got it an ignored it, but you can't prove it. Isn't it great that there's a way you can finally know once and for all whether your message was received or not?
