The internet is full of websites designed to meet your every need, from political gossip to cat memes. However, when it’s time to get down to business it can be difficult to find reliable tools to help you get the job done. This series presents a collection of websites that offer distinct, well-developed resources to increase your productivity.

Part II: Information Retention

Need to memorize the first 600 digits of pi? Study for your American History final? Figure out the calculus homework from that class you slept through?

If so, check out these free tools designed to help you understand and retain course content.

FLVTO

FLVTO is a YouTube downloading service that allows you to turn your favorite videos into AAC, MP3, MP4, WMV, AVI and MOV files so you can access them offline whenever you want. If professors assign homework tied to YouTube content, you can use FLVTO to download the relevant videos. Or, you can use FLVTO to download TED Talks and mini-documentaries related to your coursework to bolster your understanding of the subject.

Quizlet

Quizlet is an all-purpose, digital flashcard system. You can upload your notes or enter terms and definitions directly into the set creator. Once you’ve made a set, you can share and combine your cards with classmates or search for other users’ sets; this is especially useful for common core courses and standardized tests such as CLEP exams and the SAT. Other functions include integrating images for easier memorization, creating customizable exams and designing single and multiplayer games using the flashcards. Best of all, Quizlet’s mobile app allows you to create and study flashcards on the go.

Pinfruit

Pinfruit has only one function: helping you memorize numbers using the Mnemonic Major System. Enter a number of any length and Pinfruit will give you a list of words to choose from. Each word has two major consonant sounds that correspond to two digits of the number you entered. These words turn even lengthy numbers into short, memorable phrases.

Wolfram Alpha

Wolfram Alpha is a computational engine that can do many impressive things (type in “planes overhead,” sometime), but its strength lies in calculation and computation. Using the site, you can solve language puzzles, get step-by-step solutions to nearly any mathematical problem, analyze statistics and perform measurement conversions. It can also supply interactive data about socioeconomic surveys, art, music, astronomy, digital objects, nutrition, organizations and transportation.

More Online Study Tools

Miss the first installment? Check out Part I (Homework & Research Tools). Keep an eye out for Part III (Group Study Tools) and Part IV (Organization and Environment Tools).