S/MIME Digital ID's.  Using Digital ID's, which are also called digital certificates or personal certs, is my preferred way to send and receive secure email.  To obtain my S/MIME Digital ID, click here, and enter mike@dryjapat.com in the appropriate space.  S/MIME Digital ID's are certificates that can be installed in email clients like Microsoft Outlook, and enable the sending of signed email, and the receiving of encrypted email.  S/MIME Digital ID's are available for individuals from VeriSign, Thawte, and, for European users, GlobalSign.  Digital ID's from other vendors are available for enterprise users.  VeriSign Digital ID's cost under $15 on an annual basis, GlobalSign Digital ID's cost 16 Euros annually, and Thawte Digital ID's are free.  Note that VeriSign's, Thawte's, and other vendors' S/MIME certificates are compatible with one another.

PGP.  Click here for my PGP key.  Information regarding PGP can be found by clicking here.  PGP keys are available for free for personal purposes, and are available for under $20 for business purposes.