Follow @KnowMSN and take the #MSNChallenge. Look for the daily tweet and follow the instructions to enter.
Sweeps Rating: Okay
Eligibility: legal resident of the 50 United States and District of Columbia, are 18 years of age or older. You must now have won a Bing sweepstakes or contest since November 1, 2012.
Entry Dates: begins on May 23, 2013, and ends at 12:00 a.m. PT on June 26, 2013
How to Enter | Rules
1. Follow @KnowMSN on Twitter.
2. On the day of the Sweepstakes, an official tweet will be posted from the @KnowMSN handle, prompting you to take a specific action to enter using the hashtag #MSNChallenge. You have until the end of the Entry Period to retweet this tweet and receive a Sweepstakes entry.
May 24th Tweet
You must remain a follower until at least June 30, 2013 in order to be contacted if you are selected as a potential winner.
Entry Limit: one entry per entrant or Twitter ID per day.
Five Prizes: Each winner will from May 29 – June 19 will receive a $250 Microsoft Store gift card
One Grand Prize winner selected on June 26 will win one a $600 Microsoft Store gift card
Random Drawing: on or about May 29, 2013, and every Wednesday thereafter until June 26, 2013
Limit of one (1) entry per entrant or Twitter ID.
just verified with them – only one entry is accepted