NakedSSL - Hassle-free SSL clothes for your naked domains.
Secure My Website - A pain-free service to add SSL to your site, for non-geeks
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
redirectssl - Setup your naked (non-WWW) domain with an SSL and redirect it anywhere.
Kilo SSL - Automatic SSL management solution for SaaS providers
TinyCert - Free SSL certificates for your startup.