Summer vacation is finally here; but for struggling students, summer isn’t always a welcome break. Just because classes are out doesn’t mean you can put the brakes on learning, especially if you want to catch up by the fall. If you’re having trouble with college level courses, or if you’re the parent of a middle or high school student struggling to keep up, you should know there are websites offering quality instruction at no cost. Tutoring is a great and effective method to improve your knowledge and skills, but if you don’t have the money to spend, or if you prefer self-paced learning, consider Khan Academy and the OWL at Purdue. Khan Academy features 2,100 videos and 100 exercises and assessments covering everything from arithmetic to physics, finance, and history. While there are a variety of topics covered, this site focuses on Math and Science. If you need to build grammar and writing skills this summer, the OWL, which stands for Online Writing Lab, is a lifesaver. Topics include beginning writing, conducting research, proofreading, and APA and MLA style guides. Depth and detail of instruction set these two sites apart from other instructional content on the web. There are no simplistic overviews, instead users benefit from comprehensive, interactive, and authoritative learning resources.