I search for solutions in this order: Past Code, Unreal Source, Wiki, BUF, groups.yahoo, google, screaming at monitor. – RegularX
Unreal Wiki:Community portal
Welcome to the Community Portal. This is the place to find out what's happening on Unreal Wiki and what you can do to help.
See what's new and cool on Unreal Wiki.
What is Unreal Wiki and how can you use it?
Unreal Wiki is seeking to provide comprehensive documentation about Unreal Engine games and tutorials about creating content for them. You can help out in a number of ways, for example by writing tutorials, documenting engine features and, most importantly, improve existing documentation.
If you have questions about Unreal Wiki that these pages do not answer, feel free to use an IRC Client to join our channel #unrealwiki on the EnterTheGame network. Or just browse over to the Unreal Wiki forum at the BeyondUnreal Forums.