Online Math ResourcesMathmaster has videos on dev math.Khan Academy allows you to enroll (for FREE) and then you can sign up for a course or look for various material. The Math Page - material on background algebra and calculusPaul's Online Math Notes - has material in College Algebra and calculus 1, II, III along with Diff Eqn.These have material appropriate for dev math and maybe some background for algebra issues for MATH students.Math is Fun - Cool Math -https://www.khanacademy.orgVideo explanation of concepts ranging from basic math to Multi variable calculus and Linear algebra.http://www.sosmath.comMath forum where anyone can view problems that have already been solved and also ask questions of your own. Topics range from Lower level math to graduate math.www.mathway.comVery nice site (app also available).The site can solve problems ranging from basic math to differential equations. Free version will give you the answer only without the steps. The paid version will list the steps in addition to giving you the answer.The site can also graph curves. www.geogebra.orgMath site that encompasses all level of math including statistics. iPad app available in addition to desktop version. http://www.purplemath.com/modules/index.htmMonroe community college's "calcplot3d" is a resource several of us send our cal 3 students to: http://web.monroecc.edu/manila/webfiles/calcNSF/JavaCode/CalcPlot3D.htm