You've probably heard of the Amazon Kindle, an extremely popular wireless eBook reader. Amazon boasts that over 850,000 books are available for download to the Kindle. And there are more than 1.8 million out-of-copyright books you mac app can get for free. How about that?

But what if you don't have a Kindle? Then you're still in luck. Amazon has developed an army of reader apps for just about anyone who has access to the Internet via smart phone or computer.

Since I have a MacBook Air, this article focuses on the Kindle Reader for Mac.

Get an Amazon account first.

You'll need to register for an account with Amazon before you can start downloading. For most people, you'll sign-in just like you do when you buy something from the Amazon store.

Once you're signed in, you'll need to navigate to the Kindle Store. Here you'll see everything related to the Amazon Kindle.

Take a look at the left sidebar and you'll see the list of Kindle reading apps. Current choices include the iPad, iPhone, PC, Mac, Android, BlackBerry and Windows Phone 7. Click on Kindle for Mac and you'll be taken to the page where you can download the reader for Mac.

Here's where some of the Mac users with older hardware and operating systems may be left out. To use Kindle for Mac, you'll have to be running Mac OS X 10.5 and above, have at least 512 MB of RAM and 100MB of available disk space AND own a Mac with a 500MHz Intel processor. So basically, you need a Mac bought in the last few years and have upgraded to Leopard or Snow Leopard.

Download the Kindle Reader for Mac software.

Downloading the Kindle reader app for Mac is as simple as everything else you'll do on your Mac. Just click the download button and you'll see the disk image in your download files. Once the download is complete, double click on the disk image called KindleForMac.dmg.

You'll probably see a warning about opening a file that 's been downloaded from the Internet, but keep going anyway. A Finder window will open showing the Kindle app and your Applications folder. Drag the Kindle for Mac into your Applications folder and now you're ready to start finding some great books.

Now that you have the e-reader application installed, you can head back to the Kindle Store and look around a little. You'll find New York Times bestsellers and even new releases starting at just $9.99. And many authors and publishers offer free book samples, so you can read the first chapter before deciding to buy. One thing you won't find is Kindle newspapers, magazines and blogs. These options are not currently available for the Mac reader.

Apple to Release Mac OS X Lion With 250 New Features

Apple is releasing a new update to Mac OS X called Lion, and it has features that will benefit everyone who uses a Mac, from artists to architects to internet marketers.

In designing the new operating system, Apple drew a lot of inspiration from the iPad. A case in point was in its use of gestures in the new operating system.

If you have a trackpad, you will enjoy new multi-touch gestures, including swiping with three fingers to move from app to app or flipping through webpages or documents like pages in a book.

You can turn pages by swiping back and forth.

You can scroll through a document such as a webpage by swiping up and down on your trackpad. You can turn pages by swiping back and forth. To zoom out, simply pinch.

Full-screen apps take advantage of your large iMac screen, or make better use of the screen on your Macbook. This gives a simplified, much more iPad like experience on your Mac.

Now you can get immersed in a full screen experience while working in iPhoto, reading your e-mail, surfing the web in Safari or working in Apple's pages.

One thing that separates a computer's user experience from

That of a tablet is the sheer number of things that the user frequently has going on all at the same time. Mission Control in Lion gives you a bird's-eye view of everything on your system, including apps, Dashboard, Exposé, and Spaces.

Launchpad turns your whole screen into an app Pro Display XDR launcher. It can be invoked through a simple click on the Mac OS dock, and you see your app icons arranged in a grid on the screen across the desktop pattern.

Since you likely have too many apps to fit on one screen, you flip through them by swiping, and the entire screen changes to the next set of apps. You can arrange apps into collections on the screen, which Apple calls "folders," (but not to be confused with folders in the finder).

Want more apps?

Mac App Store lets you browse and buy thousands of apps just like you do on your iPhone and iPad.

Using your apps is also improved. For example, Resume allows apps to launch exactly the way they were when you closed them, with all apps automatically launched when you restart.