Searching at a desktop computer and searching on a mobile device offer inherently different experiences. The mobile device's limitations play a role, but so does the user's mindset. You'll have to keep that in mind if you want to encourage mobile visitors to your site to keep browsing and convert. With that being said, in this tutorial, we will be showcasing some mobile SEO tips to help you achieve this goal.
Brian Klais (http://www.pureoxygenmobile.com/mobile-friendly-vs-mobile-optimized-an-analysis-of-carnivals-new-mobile-site/) recently wrote an analysis of Carnival Cruise Lines' new mobile site that brings out many of the things you need to remember when you create a site for mobile device users. You needn't build a separate site with its own domain for mobile searchers, of course; you can maintain one domain for desktop and smartphone users, and render content with handheld style sheets for the latter. But that's a discussion for another time.
Either way, you're facing the same technical issues. The most obvious one is the smaller screen. First and foremost, you need to make sure that web pages intended for smartphones actually fit the device's window size. Scrolling, especially horizontally, is a pain.
While many smartphones feature hardware keyboards, few of them are comfortable to type on - and let's face it, when the keys are half the size of your fingernails, "comfort" is a relative thing. So you should set up your pages to minimize typing. Make sure your search box is easy to see, but also offer quick search options that let users easily click to whatever they want to see.
Speaking of clicking to things, do remember that we're talking about a smartphone here. It's totally appropriate to include click-to-call functionality on your mobile pages, and may even encourage conversions. By the way, if you want to get more conversions in general from your mobile pages, make it as easy as possible to complete a transaction from a smartphone. This means clear, step-by-step visual instructions, if at all possible.
In addition to limitations on a mobile device's screen and keyboard, you must address bandwidth issues. If you think the speed at which your web pages load matters to desktop users, that goes triple for mobile device users. Test your pages on multiple types of networks (wi-fi and non-3G) and mobile devices to see how fast they load. If you find yourself getting impatient to see content, imagine how your mobile visitors will feel...and how fast they'll click away to see something else.
How do you address lengthy download issues? You may need to make some structural changes to your mobile pages and how they perform certain tasks. But let's start by looking at page size. The W3C recommends a page size of no more than 20 KB. You need to fit your primary document, images, and style sheets in that space. If your mobile web pages are significantly bigger than that, you need to see what you can cut.
How big is too big? Many of Carnival Cruise Lines' mobile web pages took more than 20 seconds to load over a non-3G network, in part due to size issues. They usually weighed in at more than 200 KB each. It's safe to say that very few people are going to wait that long for a web page to load!
Search Optimization 
