Examples of powerful LaTeX packages and techniques in use — a great way to learn LaTeX by example. Search or browse below.

BGU Endnotes Chicago - History Dept. Template
Ben-Gurion University of the Negev. Requested format for History papers in 2016.
Brandon Payne

Overleaf to Texmaker Bibtex Template
get bibtex working on both in Overleaf (BibLaTeX) and Texmaker (MiKTeX, Apacite)
Lee Zhen Yong

Bibliography - Chicago Author-Date, DOI suppressed
Print only your Bibliography in the Chicago Author-Date format. Simply
change the line
\bibliography{musicBib.bib}
to the name of your BibTeX or BibLaTeX file and
upload your .bib file to the project.
Brandon Payne

Biber works!
Biblatex with biber as backend
Oleg Soloviev

How to Reference, UWE style
A short primer of how reference with an approximation of UWE Harvard style.
Note that it doesn't quite match the quirks of when UWE Harvard uses et.al. after the first time a reference is cited within your text (i.e. this template works according to the rules of the first time a piece is cited within text, rather than the subsequent modifications).
Deirdre Toher

Bibliographies with biber and biblatex
How to use biblatex with bibier and hyperref package.
Frank the Bunny

The Chicago Citation Style with biblatex
The biblatex-chicago package implements the citation style of the Chicago Manual of Style, 16th edition. In this example, the notes option causes biblatex's autocite command to put citations in footnotes. The package can also produce inline author-year citations in the Chicago style. See the package documentation for more information.
writeLaTeX

Automatic Glossaries in LaTeX
This example shows how to generate automatic glossaries with the glossaries package. For more information, there's a good guide in the LaTeX wikibook, and also in the package documentation.
writeLaTeX

A simple example showing how to create Harvard style referencing in LaTeX
The following examples show how to produce Harvard style references using biblatex.
See this post on TeX StackExchange for further discussion on the Harvard referencing style, and this post for more details on switching to biblatex if you're more familiar with e.g. natbib.
John Hammersley