As you share online, focus on fruitful relationships that bring you closer to Jesus Christ. Anything unfruitful and unfulfilling—anything that drives away the Spirit—should be avoided. As you build and nurture relationships with friends using online tools, the gospel will spread naturally, allowing you to "fish where the fish are." Satan can trick us into squandering those relationships and wasting our time on the web with things not conducive to the Spirit.
Elder David A. Bednar said: "I am not suggesting all technology is inherently bad; it is not. Nor am I saying we should not use its many capabilities in appropriate ways to learn, to communicate, to lift and brighten lives, and to build and strengthen the Church; of course we should. But I am raising a warning voice that we should not squander and damage authentic relationships by obsessing over contrived ones" ("Things as They Really Are," CES fireside for young adults, May 2009).
Be sure to focus on that relationship that is most fruitful as you share the gospel—your relationship with your Heavenly Father. Use the Spirit as you find ways to share the gospel online. Try to help those you associate with online realize the power of the Atonement of Jesus Christ—and specifically its role in your life. Don’t be afraid to share your testimony of our Savior when you feel prompted by the Spirit. As you do so, blessings will come to your life and the lives of those with whom you share.