Hands-on scientific investigations are acknowledged to be the best way to teach science literacy. Science Buddies supports these activities by providing free science fair project ideas, answers, and tools to teachers, parents, and students from all walks of life. Their objective is to save their users' time while guiding them to a successful outcome. We offer a number of resources for students and teachers: the Science Fair Project Guide, Topic Selection Wizard, and Ask An Expert. The Project Guide i s an online encyclopedia for how to do science research and science fair projects. It includes step-by-step guidance, actual sample assignments, photos of science fair projects, tips for success, and self-grading checklists for students. The topic selection wizard is a n immensely popular, interactive tool that helps students to explore different topic areas for their science fair project. First, the tool leads students through a series of plain English questions to help them determine science fields of true interest to them. Then the tool analyzes student responses to provide a custom-tailored selection of science fair Project Ideas. Project Ideas are developed either in house by Science Buddies' staff scientists or by science professionals who collaborate with Science Buddies. Each Project Idea includes a description of the subject matter, bibliographic references, locations of Internet-based public domain tools and/or real-time scientific data, and suggestions for experiments.