What is meant by 24P and 23.98?

 
1080i, 720p, 24P . . . oh my!
30 frames, 60i, 25 frames, 50i, 29.97, 23.98.  Somebody help!
Here are links to two in-depth articles on the web that I found that does an excellent job in explaining what all these terms all mean: http://tinyurl.com/ysxs4h   http://www.answers.com/topic/24p
But if you want a quick-read summary, I’ll give it try.  Please read on: