In this case, read the instructions on the mod page or document included carefully. Those mods that don't have this option will require you to extract the files manually. The majority of mods on this list are from the Nexus and can simply be downloaded using the Nexus Mod Manager by choosing the 'Download with Manager' option. I will not be giving installation instructions for every single mod as most mod authors provide these instructions on their respective mod pages. Owning all the DLC is required as a lot of mods require DLC assets to function properly. This means no lightsaber or anime face mods. This article is an overview of a few of the best tweaks and mods for improving the Fallout New Vegas experience, no drastic changes, but a refinement and expansion upon the the base game.
With the positive reception of the Modding-Fallout 3 article, a follow up for the sequel seemed like a good idea.