VisualVM - VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...
NakedSSL - Hassle-free SSL clothes for your naked domains.
OProfile - OProfile is an open source project that includes a statistical profiler, capable of profiling all running code at low overhead.
SSL Alerts - Free service to send SSL certificate expiration alerts
MemoryLogic - MemoryLogic offers tools to add process id and memory usage in rails logs and to track memory leaks.
BrandSSL - On demand SSL for SaaS