Introduction to MongoDB by Justin Jenkins.
Maybe I am just getting jaded or tired, perhaps both, but the hello world examples in introductions has worn thin.
It can be used to illustrate elementary operations, very elementary operations, but once you have seen one elementary operation, you have seen them all.
Just once I would like to see a code to crack passwords protecting the WhiteHouse switchboard or script for real time TCP/IP packet replacement type example. Maybe not exactly those but you get the drift.*
Something with some bite to it.
Perhaps in addition to the hello world examples.
The introduction by Jenkins is serviceable enough, but for real details, see: MongoDB, the MongoDB homesite.
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* The equivalent for topic maps would be an example of how to make leaked information dangerous rather than simply annoying.
For example, a topic map could merge currently secret (or public) information about an individual to assist in the evaluation of a leak. Or to decide on how to exploit it. Without every analyst having to dig up the same information.