What essential and proven resources exist that support technical and professional growth to DBAs (or technicians) who are limited to narrow focus work that supports a daily grind?

What resources are essential to DBAs facing production issues (or maintain current information involving bug fixes, releases, known problem, and resolutions)?

What resources exist that can provide a quick, efficient, and broad overview of technology issues and information for edification of technicians working narrow capacities (but eliminating the hype and advertising of most journals)

What are the most important sites and documents that provide quick, dependable, organized and concise help and information that DBAs consistently rely on?

What are the best timesavers for DBAs (Whether technical, monitoring, problem solving or office automation).