Immortality is impossible to achieve. In the past we built pyramids, art, or did something to be remembered. In the virtual age there is now a new option to keep you alive and with very little effort.
Imagine this, you will always be alive on Twitter, Facebook, Google+,etc. A program that “manages” your accounts forever. It accepts new followers and automatically follows new followers. It re-tweets posts based on key words or your defined interests. It scours the internet for the same interests and even posts those. You could essentially live forever in the virtual world, you just need a computer or server somewhere to always be running.
I call this the RIP Bot. It will keep you alive on all of the social networks forever. Coming to a cloud near you.