PGP Global Directory - The place to publish and search OpenPGP public keys.
MIT PGP Public Key Server - The place to publish and search OpenPGP public keys.
OpenPGP Keyserver - Pool of places to publish and search OpenPGP public keys.
peegeepee - peegeepee.com is a free and public PGP Key server
Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.
KeePass - KeePass is an open source password manager. Passwords can be stored in highly-encrypted databases, which can be unlocked with one master password or key file.