Online missionary work can be like fishing or like hunting.
Sometimes we cast our line and then wait for someone to come along. For example, our website about Mormon beliefs sits idly until someone types “Mormon beliefs” into Google, and then it is found. Other fishermen are there too.
18 And Jesus, walking by the sea of Galilee, saw two brethren, Simon called Peter, and Andrew his brother, casting a net into the sea: for they were fishers.
19 And he saith unto them, Follow me, and I will make you fishers of men.
Other times we hunt; we seek out people interested in learning more about the Church. If you want a missionary opportunity right now, visit Yahoo Answers and type in “Mormon” or join the forums at LDSForums.com. You’ll find plenty of people with questions about the Church.
16 Behold, I will send for many fishers, saith the LORD, and they shall fish them; and after will I send for many hunters, and they shall hunt them from every mountain, and from every hill, and out of the holes of the rocks.
Among the most recurring themes in scripture is “seek and ye shall find“. We should make that true for people searching online.