Microwave friendly utensils, what qualifies as Any easy ways to identify microwave friendly utensils? I know some basic guidelines like, "no metallic items", but am confused about certain kind of glass dishes, bowls. Are all kind of ceramic containers allowed?

All I am looking for is basically a set of guidelines/thumbrules that I can follow.
Here is a set of guidelines I found from a major manufacturer: http://www.geappliances.com/search/fast/infobase/10001216.htm

As you mention, any metal items or items with embedded metal are not appropriate.  Thinner and bendable plastics are probably not a great idea either since they can melt.  Most ceramics and glass should be okay.

When in doubt, check to see whether the item is labelled as microwave-safe, and if you can't tell, test it first using the method described in the linked guidelines.