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Product Review - If you suffer from the disease of the cult of the new, you might want to have access to product reviews. It wouldn't have to be games that are brand new, although this is probably the most useful for other users. If we could produce work half as good as EndersGame, we should be lucky.
Game Design - This might just be wishful thinking, but I hope there are enough game designer enthusiasts that are willing to share their thought process in designing a game.
Session Reports - A weekly or bi-weekly report about how a game turned out. Perhaps with pictures or video of the game play to help people follow it. Either described from the point of view of a all knowing being, or from the perspective of a single player.
Best of Board and Card Games - Take the most thought provoking and/or popular Q&A and transform the best few answers into blog posts. For example, a strategy question that results in separate strategies for an answer spread across 4 good answers could have all the 4 answers blended into a single blog post.
Game Theory/Game Tech - Discussions about game mechanics, or general game theory concepts. For an idea of what this might look like, see Ludology - Geoff Engelstein. He has a running segment on The Dice Tower where he discusses Game Theory.