UPDATE: As of November 23, 2014, the $30 Uber Sign Up Bonus has been lowered to $20.  The $30 bonus was a fantastic offer while it lasted, but $20 in free credit towards your first ride is still a great deal.  The steps below are still correct, except that you will earn $20 towards your first ride instead of $30.

Most of you by now have likely heard of Uber, the innovative new on-demand car service.  Similar to private car service, but with prices often equal to or less than taxis, Uber is rapidly expanding and revolutionizing the transportation market.

Normally, Uber offers a referral program with a $10 sign-up bonus, both for you as a new user and for the user who referred you.  For a limited time, however, they’ve tripled that bonus to $30!!  If you haven’t signed up for Uber yet, this is the time to do it…this is the best Uber promo code that’s ever been offered.  I’d of course appreciate the support if you use my referral link, which you can access here.  Once you’ve signed up (or if you’ve already signed up), you’ll get your own referral code, and you’re welcome to post a reply with that link as a comment on this post for other users to use.

If you’ve never heard of it, you should get with it!!  The process is simple: by opening the Uber App on your smartphone, the app will detect your exact location, and it will immediately tell you exactly how far away the nearest car is.  As long as you’re not on the extreme outskirts of a city, there’s likely a car within 5-10 minutes of you.  Even on the outskirts, you’re probably not more than 15-20 minutes (and can track the car coming to you).

With a simple tap, you can request the car to come pick you up.  As soon as a driver is confirmed and en route, you will see a picture of the driver, the car’s license plate, the estimated arrival time, and you can even see the car on a map as it drives towards you.  No more standing out in the cold or the rain waiting for a taxi to arrive.  You’ll also instantly have access to the driver’s phone number, so you can contact him or her in case of any issues.

The service is now available in over 75 cities in the US (including Winston-Salem, Charlotte, and Raleigh, NC, and Jacksonville, FL…places where I know a lot of Guru readers live), and dozens more internationally.  I’ve personally used the service many times – in Washington DC, Charlotte, New York, and just this past weekend in San Francisco.

I personally love the service, and highly recommend it.  The drivers are almost always more reliable, more prompt, friendlier, more professional, and seem to be safer than taxi drivers.  They have a built-in rating system (after each ride, you can rate your driver from 1-5 stars), so if a driver is rude, unsafe, etc. Uber won’t let them continue as one of their drivers.  As a result, the quality of drivers and cars tend to be very good.

Don’t miss out on this limited time offer for getting access to the best Uber promo code ever offered: $30 in credit completely free!