There are two types of studiers: those who best study without noise and those who study best with it. While music is a standard go-to for background noise, it can be a distraction if you have lyrical music or you're not content with any of the songs playing. To alleviate such problems, I recommend MyNoise, which is more than your everyday noise generator. MyNoise has an expansive collection of sound generators, all of which can be customized to suit your needs. Besides having a lot of sounds, they also have very unique ones available, like "RPG Dark Forest" and "Tibetan Monks." My favorite ones are "Tropical Rain" and "Sailboat" and I like using the sites super generator to put them on one window and layer the sounds together. There's a lot of sounds and options on MyNoise that are definitely worth checking out if you need an alternative to music or just want something to drown out surrounding noise.

If you think the way you're currently studying could be improved or you flat-out don't know how to study something, the Study Guides & Strategies site might be of interest to you. This site provides helpful guides for tackling whatever subject you have on your plate. Besides studying, it also provides other educational guides, such as how to compose a persuasive essay or solving for linear equations. ESL studiers needn't despair either as the site also provides their resources in 38 different languages!

For subjects that rely mostly on terms and definitions, I've personally found that flash cards work best  when studying for exams and quizzes. I used to write all out all the terms on 3x5 cards, one by one, then flip through them to study, but after the list of terms gets so long, writing them out by hand can get a little taxing. Luckily, I've found Quizlet to be a really great electronic substitute for paper flash cards. Easy to use and just as portable as a stack of cards with their mobile app, Quizlet also provides quizzes and games using your digital cards to help better implement the material. Flash cards can be easily shared, too, using e-mails or links, like this link to a kanji/hiragana set to help me study for a quiz tomorrow.