Edutopia is reliable and well known source of information for educators.  The technology blog provides useful articles on how to effectively integrate technology in the classroom from 1:1 implementation to the flipped classroom.

This is YouTube's free video editing Web 2.0 program.  Students and teachers could use this to create and store online media for classes.  Many schools have Google accounts for their students that could be used to access the YouTube video editor as long as administrator provided the proper permissions.  This could also be a free alternative to programs districts must pay for like iMovie or WeVideo.

Collaborize Classroom is an online Web2.0 tool that allows teachers to facilitate and create distributed learning communities for their classes.  This is a forum for students to blog on questions from class and extend their learning beyond the classroom.

Google Earth is an instructional tool that I use often as a social studies teacher.  However, it can be used across content areas.  For example, it can be used to highlight the geographic connections to the settings of novels, or to take students on virtual field trips to science museums.

Education Week Teacher is a blog that has an array of articles concerning technology integration. The blog also provides news that covers a wide range of issues relating to education.

WIC is a wiki that provides resources about how to effectively implement technology into the classroom. The wiki also provides guidance about how to teach students to use technology appropriately.