This online library has a bunch of strategies that you can use for literacy. I have used it before when I am stuck or want to do something different to teach a skill.
I have used this Jeopardy game creator in the past to create review games before a unit test. The students partner up and play against each other while I get some last minute remediation in with students before the summative assessment. It works for both iPads and computers.
This is yet another site that I have used in my classroom before. It is full of activities that the students can participate in to work on their comprehension skills. I have known others who have also used this as part of a classroom station.
This is another website that I use in my classroom. It is full of virtual manipulatives that you can show to the class, or have them explore themselves. It is broken down by content areas and grade levels.
I found this blog last year. I like going to it for ideas for anchor charts in my classroom. I have used the math ones a lot and the students enjoy them as well, especially the factor ninja and multiple monster. They even made their own versions.
A site where you can design quizzes, to help assess students understanding of a concept. I use it as a formative tool, for deciding who needs remediation on a concept.
My it was great to see my students move through this program last year. I also liked that I could see where each individual student was at daily. They also have certificates that you can print out and give to them as they complete each operation.