The package "Glossaries" (the package is found here) is a nice one. You can easily make multiple glossaries and you can also use it to manage your acronyms and abbreviations. Some really nice features, like that the acronym is written on the first appearing out and given in brackets the abbreviation and subsequently appears only abbreviated, have convinced me to use this package. It is also already installed by default in the MacTex-Distribution
Well the only problem ist, that you need some patience to try out the different configurations when you use it the first time. So I have looked around and found some help on the blog of MedienPeter.
By the way: If you are looking for templates or tutorials for a thesis or something like this, I recently stumbled upon an entry on the blog of Philippe Niquille.
But now back to the configuration options and the packages you need to use "Glossaries" in your LaTeX-Document.
