For quick help in SEarching:

Wikipedia is Free online encyclopedia, where you can find explanations about nearly everything.
Onelook is a huge dictionary: definitions, acronyms..., links to over 900 other dictionaries.
BableFish is a free translating tool - automaticly translatse entire website in seconds. For informative use.
Yahoo directory: when you want to know what all exist on one field.
Big-Board List of (currently 1855) forums (search: keyword, topic, language...).