This is one of the coolest things I've seen this year. The people at <a href="http://www.openbible.info">OpenBible</a> charted the emotional content of the Bible from beginning to end and created an infographic.
<blockquote>"Things start off well with creation, turn negative with Job and the patriarchs, improve again with Moses, dip with the period of the judges, recover with David, and have a mixed record (especially negative when Samaria is around) during the monarchy. The exilic period isn’t as negative as you might expect, nor the return period as positive. In the New Testament, things start off fine with Jesus, then quickly turn negative as opposition to his message grows. The story of the early church, especially in the epistles, is largely positive."</blockquote>
You can see the detailed version <a href="http://a.openbible.info/blog/2011-10-sentiment-full.png">here</a>.