This website is an incredible (free!) resource for English teachers. It has ideas, articles, networking for nearly any subject in English you could dream of! It was recommended to me by one of my English Teaching professors.
"Integration of technology is an integral part of project based learning, because technology is an integral part of life outside the classroom as revealed in this part of the definition - "types of learning and work people do in the everyday world outside the classroom.""
This has activities applicable to language arts, social studies, math, and science for grades Pre-K through 12th grade. They were actually pretty interesting. Very diverse.
This website has lesson plans, but especially it has tons of web resources. One of the coolest ones I found was http://web-japan.org/kidsweb/, where there are so many resources to use if you were teaching a unit on Japan. That's just one example. There are tons!