Maybe not exactly everything you need to know is included in here, but there is a handful of stuff you need to know if your a newcomer otaku just like I am. I myself found this very helpful and I hope you'll find it as such. Here's the link http://www.animeyume.com/site_featur...ictionary.html  

"The purpose of filler episodes is to give the manga time to catch up with the anime or to make the anime last longer than the manga."

*claps*