AATSP is a professional organization specficially for teachers of Spanish and Portuguese. It requires membership to access much of the content, but also has some free content. It includes links to the National Spanish Exam and practice tests.
BrainPopJr is an extremely engaging website that provides games for students in all subject areas. It is easy to differentiate. It also gives many teacher resources which can help link this material to the traditional curriculum. Trial available.
On-line resource to create diagrams and graphic organizers. Free to use; registration required. Teacher and student friendly. Recommended uses: water cycle, rock cycle. Relatively easy to use. On-line save option. Can edit simultaneously from remote sites (real time collaboration).