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Facebook has a big launch event on Tuesday. Here are nine things I think it may be working on, or at least should be. We’ve heard tips that some of these are already in development and may be released soon, while the rest could fill big holes in Facebook. Even if none of them hit the stage on Tuesday, they probably will eventually, and the list offers a deep look at what Facebook could improve right now. What this list doesn’t include is wildly forward-thinking products. Facebook should definitely still be trying to blow people away with revolutionary innovation. But right now there are cracks in the infrastructure, business deficiencies, and huge opportunities to apply its data set that need to be taken care of.