Good, brief examination of icons and relics over at a Templar oriented blog in LiveJournal. Here is a brief quote:
Last, but not least, is the veneration of Relics. Probably the most famous Relic in the Western world is the Shroud of Turin which is taken by the church to be Christ’s burial cloth.
The examination is also an effective (and very polite) rebuttal to a rather ill- informed, tasteless site called Orthodox Catholic Idolatry: Catholicism is of the Devil!