Highlights Kids is a resource that was recently brought to my attention. It is a free resource and can be used in multiple ways for teachers and students.
The "play it" section has quite a few learning games and digital art activities that would work extremely well on an interactive whiteboard. Students could create their own silly stories, do puzzles, unscramble words, along with many other fun activities.
The "read it" section has quite a few short stories and articles that can be accessed on any device. What especially nice is that it will read the text aloud and highlight the words as it reads. The first grade teachers at Wayne Center Elementary are sending specific articles to students through email that they will utilize for vocabulary instruction throughout the whole week. The fact that it also reads the text aloud allows struggling readers to participate as well.