I see that the second link is for "The Great Race to Rewards Giveaway." (It appears to have no connection to the "3/4/5/6 Destinations to earn Reward Credits" Great Race.)
All of the prizes for the "Giveaway" are trips and gift cards. Here is the e-mail I received after signing up.
Thanks for entering The Great Race to Rewards Giveaway today. You're now in the running for the chance to win a summer escape, tailor-made just for you!
There are lots of ways to win. Sign in every day to earn an entry and chance to win one of 85 Total Rewards gift cards INSTANTLY! Find secret keywords at Caesars Entertainment Facebook pages and check in at your favorite destinations in-person.
According to the official rules of this contest on the second link, "checking in" is about using a wireless mobile device.
b) Check in using a wireless mobile device: Beginning July 15, 2011 through the end of the Promotion Period, you may log-in to your Facebook account or Foursquare Labs, Inc. “Foursquare” account. If you do not have a Facebook or Foursquare account you may follow the instructions to create one. Creating an account is free of charge. You may create a Foursquare account at https://foursquare.com and a Facebook account at https://facebook.com. You will log-in to the Web Site, follow the links and instructions to access your Foursquare or Facebook account and check-in at a participating Caesars location (a "Location") listed on the Web Site. You will receive one (1) additional entry into the Sweepstakes and one (1) additional Instant Win Game play after you check-in. In order to “check in” at a participating Caesars location, you must be in or immediately adjacent to the Location’s perimeter and use your wireless mobile device to access Foursquare or Facebook and follow the system’s instructions to “check-in” to the location that corresponds to the Location. Foursquare has the right to verify the location of all check-ins.
Each time you enter a unique Keyword found on a participating Caesars Entertainment destination Facebook page or check-in at a different Location (as explained above), you will earn a unique "Badge".
I will be at a Harrah's tomorrow. I will see what I can find out.
All of the prizes for the "Giveaway" are trips and gift cards. Here is the e-mail I received after signing up.
Thanks for entering The Great Race to Rewards Giveaway today. You're now in the running for the chance to win a summer escape, tailor-made just for you!
There are lots of ways to win. Sign in every day to earn an entry and chance to win one of 85 Total Rewards gift cards INSTANTLY! Find secret keywords at Caesars Entertainment Facebook pages and check in at your favorite destinations in-person.
According to the official rules of this contest on the second link, "checking in" is about using a wireless mobile device.
b) Check in using a wireless mobile device: Beginning July 15, 2011 through the end of the Promotion Period, you may log-in to your Facebook account or Foursquare Labs, Inc. “Foursquare” account. If you do not have a Facebook or Foursquare account you may follow the instructions to create one. Creating an account is free of charge. You may create a Foursquare account at https://foursquare.com and a Facebook account at https://facebook.com. You will log-in to the Web Site, follow the links and instructions to access your Foursquare or Facebook account and check-in at a participating Caesars location (a "Location") listed on the Web Site. You will receive one (1) additional entry into the Sweepstakes and one (1) additional Instant Win Game play after you check-in. In order to “check in” at a participating Caesars location, you must be in or immediately adjacent to the Location’s perimeter and use your wireless mobile device to access Foursquare or Facebook and follow the system’s instructions to “check-in” to the location that corresponds to the Location. Foursquare has the right to verify the location of all check-ins.
Each time you enter a unique Keyword found on a participating Caesars Entertainment destination Facebook page or check-in at a different Location (as explained above), you will earn a unique "Badge".
I will be at a Harrah's tomorrow. I will see what I can find out.