Permeate algorithm

gistfile1.js

var len = tweets.length;
while (len--) {
	var tweet = tweets[len];
	if (tweet.retweeted_status) {
		tweets.splice(len, 1);
	} else {
		tweets[len].score = ((tweet.favorite_count + tweet.retweet_count) / tweet.user.followers_count) * 1000;
	}
}

tweets.sort(function(a, b){
	return +a.score -  +b.score;
}).reverse();

tweets = tweets.slice(0, 10);