We believe that e-mail is the universal communication medium. It is the best way to reach anyone, anywhere, for whatever reason. Your e-mail account stores the greatest knowledge repository outside of your brain – who you’re talking to, about what, when. Regardless of the communication medium you may use primarily in an individual relationship, any meaningful communication touches your inbox at some point.
via The Contactually Blog – E-mail is the Universal Platform. I don’t put much stock in stories that say e-mail is dead for precisely this reason. It’s hard to replace e-mail with another tool that has so many advantages.