The document discusses several examples of mobile apps being used to promote different initiatives:
1) The Surf Excel app facilitates donations to NGOs by connecting donors of used school supplies to organizations in need.
2) The London Olympics app provided an event guide, games, and results to engage users with the games.
3) The Springwell app shows users locations of mattress dealers across different cities.
4) The Ford "I Pledge to Drive Safe" app promotes safe driving awareness through pledges users can share.
5) The Tata Docomo Bloodline Club app gamifies blood donation to encourage users to join the club and donate more.