Who wants to talk about truecrypt, pgp, otr and bitcoin in Moscow?

Question

Cryptography

We continue to promote the CryptoParty format in Russia.
We are looking for crypto fans at the preCryptoParty taking place on November 26 @ {neúron} hackspace in Moscow.
In voting among ordinary users on fb, pgp, truecrypt, otr and bitcoin are still ahead :)
We need 15-20 minute howto stories for non-specialists:

• use cases
  
• History and features of technology
  
• howto guide
  

Examples: otr and pgp .
If you do not want to speak, your comments and remarks will help, as well as sharing and likes on fb :)
Thank you!

Answer 1

Consider a key signing party.