On the phone I tried this on (a Samsung using Android 2.1 ) the first item on the menu says 'Unknown Sources: Allow Install of non-Market application' check the box next to it.

Open the Android Market, search for, and install the previously carrier-blocked app. Turn off your phone. Pop the SIM card back in. Turn your phone back on. Enjoy!

Once you install that, a larger world of apps opens up for you. There’s one drawback – apps installed this way won’t show up in any of the Nook Tablet’s normal screens.

But you can run most Android apps on a Fire tablet, even if they’re not available from Amazon’s storefront. One way is to install the Google Play Store.

Since Microsoft Office Mobile for Android is incompatible with most Android tablets, here's how to install the app and use it until Microsoft releases it.

The 12th-gen Amazon Fire tablet is the first device to ship with Fire OS 8, the latest version of Amazon’s tablet operating system, and it’s now available from Amazon for $60 and up. While ...

The Amazon App Store is nice, but we can understand why you would want to install Google Play on Amazon Fire tablets!