Something that we did at my previous job, and that I have successfully lobbied for at my current one, is the Monday-morning meeting. The whole team gets together, everyone explains - in a few short sentences - what he's currently working on, and mentions anything else people might want to know about (when they will be absent, for example). The team-leader sometimes talks a little about upcoming projects or company news. Shouldn't take more than half an hour, and everyone gets up-to-speed on what people are working on. It's sort of like the agile "stand-up meeting", only once a week instead of every day.
Maybe you could introduce something like this? After all, why should you be the only one who has to explain what they're doing?