The companies are providing education tools, devices, and wireless service as part of President Obama's ConnectEd initiative.
Sites about relationships, rape and sexual abuse are being blocked automatically, a study has found, while hardcore porn is readily accessible.
The organization, EducationSuperHighway, steers schools toward speedier, more secure broadband connections.
Tim Cook calls the company's share in the education arena unheard of in most businesses.
Amazon continues to make a push into education tech, an area Apple's been trying to conquer as well.
The company has partnered with the likes of Google and Autodesk to try to create more opportunities in tech for students.
The Microsoft chairman and longtime donor to educational causes partners with Common Sense Media to launch a Web site that offers free apps, games, and curricula to teachers.
Will Google find success in the educational field where Apple, apparently, has not? Here's Google's gambit.
The company is using Kickstarter as a way to create a broader audience for its technology, and to learn what the audience thinks is cool.
Speaking at Microsoft's Faculty Summit Monday, Gates took questions from an audience of researchers about the work of his foundation and other topics.