The August issue of the New Era contains an article “Flood the Earth through Social Media” by Elder David A. Bednar that encourages us to sweep the earth with messages filled with righteousness and truth.
The article gives 6 examples of social media efforts.
The article is from an address given by Elder David A. Bednar in August 2014 during Campus Education Week at Brigham Young University.
See this video posted on the New Era Facebook page.
For more ideas of easy, practical things you can do, see the book 101 Ways to Hasten the Work Online.