Fly To
(LINKS)
Of course, many other sites exist that either discuss safety or service (but not both, of course). Here are some:
Air Safety
Airsafe Industries and Insurance
Federal Aviation Administration (FAA) (U.S. only)
National Transportation and Safety Board (NTSB) (U.S. only)
Air Service
What's wrong with United Airlines' customer service? ("Untied Airlines")
General Air Travel
The Weather Channel Online (Includes Travel Weather Information)