Hopefully this will get stickied. This thread is for all your your NZB needs and some other links to get you started.
First we'll start off with utilities you'll need to get started
You'll need a Newsread or a Binary Grabber to actually make any progress in the USENET world some free ones include Pan (Linux) and GrabIt (Windows). There are many more but this is what i've found to be easy if your starting.
Pan is a Usenet newsreader that's good at both text and binaries. It supports offline reading, scoring and killfiles, yEnc, NZB, and multiserver.
...one of the easiest Usenet content downloaders in the world. With GrabIt you can search and download any content on USENET news servers, without downloading gigabytes of headers.
If you have deep pockets (or know of a good source to get it free )than you probably should progress to a paid application. Linux users arent reccomend to pay for a client as most are free for this platform, however if you use Windows than I suggest you get Newsbin Pro once you've gotten the hang of Usenet.
Now for some sites
I wont post XXX sites as I dont think it's appropiate but a quick Google search will behold thousands of results.
If you have any suggestions for NZB sites or find any of my information misleading and can improve it PM me and ill credit you.
TV NZB is what I use it has a large number of TV shows including popular one such as The Simpson, Family Guy, Prison Break, Dragon Ball Z, Greek and a whole lot more. To see the whole list of shows click here
AmimeUSENET is a regularly updated (as most anime sites are) which tons of Anime series such series as Bleach, One Piece, Pokemon etc. They also have an extensive library of Anime, DVD, Live-Action and Sound which currently has nothing in it's category.