I know this will be of interesting for about 1 in a hundred of you, but there is a REALLY good review of hippocampal and parahippocampal region connectivity in April's Nature Review Neuroscience. Of special interest, there is an interactive .pdf in the supplementary information where you can identify the connections between one region to every other region. Also, they discuss the functions of the entorhinal cortex and the subiculum from the point of view of update anatomy.
(Unfortunately behind a subscription wall, but I feel confident that anyone who understood a word of what I just said also has subscription access.)
Hat-tip: Faculty of 1000
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I'm actually writing a story involving the hippocampus, so I'd have a look. But, it's behind a paywall. Long live PLoS!
You can get it for free from 20 March through the 20th April 2009, if you register for nature.com
I've uploaded the main article and all supplmentary media in PDF format to:
http://ifile.it/zxr1gqw
anatomyofmemory_hippocampalnetwork.zip 2.78 MB
[The anatomy of memory_ an interactive overview of the parahippocampalâhippocampal network nrn2614.pdf
rn2614-s1.pdf
rn2614-s2.pdf
rn2614-s3.pdf
rn2614-s4.pdf]