The Guardian has started its own version of TES Resources, it’s only just starting off so there aren’t a massive amount yet but certainly one to watch and you might find some interesting resources/lesson ideas.
http://prezi.com/ If you are sick of just doing Power Point, try this free for schools presentation site it can produce great animated presentations that you can also save from the site.
http://research.microsoft.com/en-us/projects/kodu/ Fancy getting children to make their own Xbox games? Try this website, no programming required although you will need an Xbox or at least Xbox controllers.
http://storybird.com/ This is a site that offers collaborative story-telling for children, there are even graphics included so children can make their own story books.
http://edublogs.org/ Set up your own mini VLEs for each of your classes to upload work to, blog, communicate with other school, show work to parents etc… really easy and free!