Sucuri - Website Protection, Malware Removal, and Blacklist Prevention
NakedSSL - Hassle-free SSL clothes for your naked domains.
Amazon CloudFront - Amazon CloudFront is a content delivery web service.
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.
SSL Alerts - Free service to send SSL certificate expiration alerts