Here's a good place to start 8-)
http://forums.egullet.org/index.php?/topic/86115-demo-mirror-glazing-technique/page__view__findpost__p__1171507__hl__glaze__fromsearch__1
http://forums.egullet.org/index.php?/topic/98136-pastry-ganache-fillings-and-glazes/page__view__findpost__p__1344169__hl__glaze__fromsearch__1
http://forums.egullet.org/index.php?/topic/92168-pastry-glaze-tips-techniques/page__view__findpost__p__1248946__hl__glaze__fromsearch__1