What's up with Iterators?

I was thrilled to see the support for containers (i.e. vector, list, etc) in C++, but the concept of iterators eludes me.  I see they are all over these containers and since I don't really know how to use them, I'm having trouble implementing the containers.
I was thrying to implement a vector full of structs (or classes perhaps).  How would I go about doing this, and then how to iterators play a part in operating on this vector?  How does one obtain an iterator?  Any insight would be much appreciated!
Timbo011598Asked:
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jhanceCommented:
The whole subject of iterators is probably beyond explaining in detail here, but I can give you some good reference materials to lookup:

Dr. Dobbs Journal, June 1996, Dan Zigmond on STL Iterators
Windows Developer Journal, March 1997, Using STL with MFC
Title       STL Tutorial and Reference
            Guide; C++ Programming
            With the Standard Template
            Library
Authors:    David R. Musser and Atul
            Saini
Publisher:  Addison-Wesley Publishing
            Company, Inc., 1996.
Pages:      400, hardcover
Price:      $35.95
ISBN:       0-201-63398-1

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