I've seen a lot of matcha green tea recipes and could not locate any matcha until I went to Dobra Tea downtown (they have a matcha green tea cheesecake!). They had some, but I found that Greenlife/Whole Foods also stocks them also. Since I stopped baking, I haven't bought any, but it's on my list since I have a huge repertoire of matcha green tea baking recipes.
Green tea and strawberry cupcakes
More matcha green tea