Pinterest is a curation tool for clipping or pinning interesting websites / photos / etc. to a board. Although it's mainly used for recipe and bridal collections, it's also very useful for getting teaching ideas.
"iTILT is a European project on Interactive Technologies in Language Teaching which focuses on the use of interactive whiteboards in the communicative language classroom."
Frameworks for thinking & mindmapping. The great thing about exploratree items is that they can be shared with other people and embedded in other places.
A great list of "cool tools for school". Many of these frameworks and scaffolds can be used in the Languages classroom, and many have foreign language translations available.
A straight-forward planning tool - great for "dream home" or "pimp my classroom" style activities. Available in many languages (and maybe Indonesian soon??)