Earning a degree online necessitates having access to a variety of resources at one’s fingertips, or in this case, at the click of a mouse. While regular college students look to libraries to provide a myriad of information sources, online learners have the same, if not more, options available on the Internet. So before you despair over that assignment or term paper that is proving to be a thorn in your flesh, check out these sites that offer free dictionaries, thesauruses, calculators, encyclopedias, and help with science, mathematics, literature, history, and writing assignments.