Radical!

I've been using Rikaichan to look up kanji, and I've noticed that each one has a number of associated radicals.  Some of them I know from the games I've been 'playing'. Others I've seen repeated in many of the kanji I've seen and wondered what they are.  I've found a list on a site here with some more information on Kanji

	This is the for "harbour" with the radical for water highlighted in red.
	Here is the character for "country" with the radical for "outh, opening, sounding highlighted in red.
	Here is the character for "big" - it is classified as a radical itself.

From Declan Software's website