If you haven't already, it's time to start thinking about building out mobile optimized websites to capture a slice of one of the world's fastest growing markets.

The worldwide mobile phone market is churning upward, growing 19.8 percent in the first quarter of 2011 alone, largely on the heels of new technologies and demand in developing countries. In the United States, which has a relatively mature and steady market, 36.4 percent of the 234 million mobile users access the Internet from their phone, according to research firm comScore.

And as technology and capabilities improve these numbers are certain to climb much higher.

So designing websites for mobile conversions is going to be paramount as more people consuming content on their handhelds will increasingly demand mobile websites that are quick and easy to use.

Content is king.

Because mobile website content needs to be prioritized for multi-tasking users - the very