If you're like me, then you are always looking for new tools to make your life easier. That's why I've arranged a few of my favorite tools to use as a reference.
Biographical Dictionary - Always handy when you're working on that long paper and you don't have time to look up proper methods for referencing your sources.
Calculators Online Center - Great place for finding all the tools to convert A to B.
ProProfs - Easy and free quiz maker that lets you track the scores of quiz takers and embed the quiz on a website.
WebMD - Because I like staying healthy, it's good to brush up on your medical knowledge so you can be self reliable in bad situations.
Also, many of the big tech companies are trying to find ways to consolidate all the reference tools you would ever need for free. Google extensions and the Apple App store all have handy tools that you can use for free.