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 # Useful Resources
 
-[Introduction to Information Retrieval](https://nlp.stanford.edu/IR-book/html/htmledition/irbook.html)
+These are good resources for getting into information retrieval in general, and search engines
+in particular. They don't always describe the exact architecture of Marginalia Search, but are
+still very enlightening.
 
-[Search Engines Information Retrieval in Practice](https://ciir.cs.umass.edu/irbook/)
+[Search Engines Information Retrieval in Practice](https://ciir.cs.umass.edu/irbook/) - Croft, Metzler & Strohman (2015)
 
-[The Anatomy of a Large-Scale Hypertextual Web Search Engine](http://infolab.stanford.edu/~backrub/google.html)
+[Introduction to Information Retrieval](https://nlp.stanford.edu/IR-book/html/htmledition/irbook.html) - Manning, Raghavan & Schütze (2008) 
+
+[The Anatomy of a Large-Scale Hypertextual Web Search Engine](http://infolab.stanford.edu/~backrub/google.html) - Page & Brin (2000)
+
+
+## Older Resources
+
+[Information Retreival](https://www.dcs.gla.ac.uk/Keith/Preface.html), Rijsbergen (1979)
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