There are many wonderful sites that can be used to prepare exceptional technology-rich opportunities for students.
Teachers' Domain
Thinkfinity
Math Musical Rhymes from Harcourt School
Scholastic Mentor Texts for the Six Traits of Writing
Illuminations ~ Resources for Teaching Math
Teaching with Brian Selznick (Virtual Field Trip)
Ellis Island (VIrtual Field Trip)
Plimoth Plantation (webcast)