read.write.think is an interactive website that supports literacy learning. There are good lesson plans with activities and resources for reading and writing for all stages. eg acrostic poems, persuasive writing and lots more.
Writing Fun is another literacy site with good ideas and resources. It uses text organisers to help with the writing process.
Teachers TV starts the year with some invaluable classroom resources, all of which can be used in class with pupils. There are plenty of varied programme topics to choose from.