This is basically a laundry list of various resources writers might find useful sometimes.
Anatomy of the Human Body The 1918 edition of the classic Gray's "Anatomy of the Human Body".
Cliche Finder Need to find cliche's involving the word cat, for example? Just type it in and it displays a list of cliches, including things like "not enough room to swing a cat" and "slicker than cat shit on a linoleum floor".
RefDesk This site is brilliant and has links to just about any reference you can think of.
Elizabethan England Life in Elizabethan England.
The Victorian Web Great for finding out about Victorian England.
Dictionary of Victorian London Another good resource.
Medieval Kingdom Generator This could be very handy for writers of fantasy stories who want to realistically populate their kingdom.
Dictonary and Thesaurus An online dictionary and thesaurus.
Erotic Quills Extensive info on how to write erotica.
Grammar and Writing A guide to grammar and writing.
Stabilization of Trauma in the ER This could be handy to anyone wanting to make their character's trip to the emergency room more realistic.
Wikipedia Wikipedia is always a good source of info, although it's usually a good idea to double check the info elsewhere, just to make sure its accurate.
If anyone has others then feel free to add them.