MERLOT
MERLOT is a free and open resource designed primarily for faculty and students of higher education. Links to online learning materials are collected here along with annotations such as peer reviews and assignments.

MarcoPolo
MarcoPolo: Internet Content for the Classroom is a nonprofit consortium of premier national and international education organizations and the Verizon Foundation dedicated to providing the highest quality Internet content and professional development to teachers and students throughout the United States.

EDSITEment
EDSITEment is the Best of the Humanities on the Web from the National Endowment for the Humanities in partnership with the National Trust for the Humanities, and the Verizon Foundation. This educational partnership brings online humanities resources from some of the world's great museums, libraries, cultural institutions, and universities directly to your classroom.